Zero Explanation: We know that in Pure inductive circuit, current is lagging by 90 degree from voltage ( in other words, Voltage is leading 90 Degree from current) i.e the pahse difference between current and voltage is 90 degree. For the above circuit, the inductive reactance is given as: Substituting the values, f = 50 Hz, L = 0.1H, we get = 31.4 Ohms approx. S Bharadwaj Reddy November 3, 2016 November 3, 2017. Average value of a sinusoidal alternating signal is ————-for a full cycle. Electric Bill Calculator with Examples, How to Find The Suitable Size of Cable & Wire for Electrical Wiring Installation? Single phase ac circuit _02.ppt - EEE3405 ELECTRICAL ENGINEERING PRINCIPLES II EE Department \u2502 Lecture \u2502 Single Phase AC circuits_02 \u00a9 Vocational 4. Reading should be taken as it is b. Therefore, Power consumed = 338.56 Watts = 339 Watts approx, Maximum charge in the capacitor, Qmax = CVm= CV√2 = 0.02 Columbs, Maximum energy, Emax = 0.5CVm2 = 3 Joules, 28. Purely Inductive Circuit 4. View All Answers. (a) Hysteresis losses are reduced (b) Saving in winding material (c) Copper losses are negligible (d) Eddy current losses are totally eliminated. For explanatory answer, click on the toggle button labeled as “check explanatory answer”. How to Calculate/Find the Rating of Transformer in kVA (Single Phase and Three Phase)? 7. 0.6 leading unity 0.8 leading Answera A capacitor start, capacitor run single phase induction motor is basically a ac series motor 2 phase induction motor 3 phase induction motor. In case of Capacitive circuit, Frequency is ___________Proportional to the Capacitance (C) or Capacitive reactance (XC). (a) Step-up transformer (b) Step-down transformer (c) Potential transformer (d) Current transformer. Single Phase AC Circuits MCQs ( With Explanatory Answers). 8. (a) Circular type (b) Sandwich type (c) Cylindrical type (d) Rectangular type. The average value of a sinusoidal alternating signal is ————–. The phase difference between voltage and current wave through a circuit element is given as 30°. Home » Single Phase Full Wave AC DC Converter MCQ Power Electronics MCQ Instrumentation Tools assists you with a complete guide of objective questions which mainly targets the aspirants of Electrical, Electronics and Instrumentation engineering Streams to crack the competitive exams and to prepare for the top MNC companies written tests. The single phase requires two wires for completing the circuit, i.e., the conductor and the neutral. These are 75.48 ohms and 57.44 ohms respectively. What is the inductance of … The unit of admittance is Siemens and its unit symbol is S. What is Admittance and how does calculate it? your electrical guide . PARALLEL CIRCUITS. 19. Most of the industry operates on 3-phase power instead of single phase. 1. ⇐ MCQ in AC Circuits Part 4 | REE Board Exam . Generation; Transmission & Distribution; Switch Gear & Protection; Machines. Zero Explanation:If Current and Voltage are 90 Degree Out of Phase, Then The Power (P) will be zero. Single phase power system schematic diagram shows little about the wiring of a practical power circuit. 2. 1. V=220, R= 10 Ω, C=500µF = (5×10-04F), f=50Hz. Skip to content. 1 - Phase AC Circuit - Electrical Engineering (MCQ) questions and answers. Depicted above, is a very simple AC circuit.If the load resistor’s power dissipation were substantial, we might call this a “power circuit” or “power system” instead of regarding it as just a regular circuit. Depicted above, is a very simple AC circuit.If the load resistor’s power dissipation were substantial, we might call this a “power circuit” or “power system” instead of regarding it as just a regular circuit. A three-phase AC system consists of three-phase generators, transmission lines, and loads. If the capacitor of a single-phase motor is short circuited (a) the motor will not start (b) the motor will run (c) the motor will run in reverse direction So in single phase minimum amount of power can be transported. Single-phase motor MCQ - 1. The reason is that, We know that Power in AC Circuit P= V I Cos φ if angle between current and Voltage are 90 ( φ = 90) Degree. Apparent Power, True Power, Reactive Power and Power Factor. These are 75.48 ohms and 57.44 ohms respectively. There are two basic types of 3-phase rectifiers: the half-wave rectifier and the full-wave rectifier. Depicted above, is a very simple AC circuit.If the load resistor’s power dissipation were substantial, we might call this a “power circuit” or “power system” instead of regarding it as just a regular circuit. Three Phase Circuits. 12. Now we increases Inductance (L) form 0.02 H to 0.04 H, XL = 2πfL= 2 x 3.1415 x 50 x 0.04 = 12.56 Ω, Z = √ (R2+XL2) = √ (102 + 12.562) = 16.05 Ω. None of The Above; Show Explanatory Answer . question number 7 has been incorrectly interpreted here.
we know,
I=V/Xc
and Xc=1/(2*pi*f*C)
that makes f directly proportional to I. 1. Answer: 2…Also Decreases Explanation: Suppose, when Inductance (L) = 0.02H, XL = 2πfL = 2 x 3.1415 x 50 x 0.02 = 6.28 Ω, Z = √ (R2+XL2) = √ (102 + 6.282) = 11.8 Ω. 64. Let’s check with an example.. We can see that, When inductance (L) was 0.02, then circuit current were 18.64 A. What is the inductance of the coil? Admittance: The Admittance is defined as the reciprocal of impedance just as conductance is the reciprocal of resistance i.e. Consider the sinusoidal alternating current signal given below. A double squirrel-cage induction motor has two rotors moving in opposite direction two parallel windings in the stator two parallel windings in the rotor two series windings in the stator 2. (a) to provide oxygen inside the tank (b) to cool the coils during reduced load (c) cool the transformer oil (d) to arrest flow of moisture when outside air enters the transformer. P = 3 V Ph I Ph CosФ; P = √3 V L I L CosФ; Both 1 & 2. Ques 44. Electromechanical energy conversion: Types of ac and dc motors, Characteristics and applications, ac generators. Basic Electrical Engineering MCQ_78_1(Single phase AC) March 16, 2019 April 10, 2020 electricalworld Q.136 To draw phasor diagram of a.c circuit consists of R, L, C. which of the following is taken as reference value? 3 phase induction motor. Conceicao Rodrigues College of Engineering. mcq on single phase transformer. Average power consumed is the power consumed in the resistor, since an ideal inductor does not consumes power. 2. The reason is that, We know that Power in AC Circuit P= V I Cos φ if angle between current and Voltage are 90 ( φ = 90) Degree. ⇐ MCQ in AC Circuits Part 7 | REE Board Exam . Q.196 Inductance L opposes changing in current during _____ A. stating interval B. transient interval C. normal D. any of the above Ans. Name Email Website. Newer Post Older Post Home 1. Answer: 2. (a) the current on secondary side is negligible (b) the voltage on secondary side does not vary (c) the voltage applied on primary side is low (d) full-load current is not supplied to the transformer. Q Factor = 1/ Power Factor=1/Cosθ= Z/R … (Where Power Factor Cosθ = R/Z), If R is too small with respect to Reactance, Then Q factor = Z/R = ωL/R = 2πfL / R … (ωL/R = 2πf). MCQ No. For the circuit given in previous question, the power consumed is—-. It indicates the maximum value. Multiple Choice Questions (MCQ) on Single Phase Motors for Electrical Engineering. EE Board Exam April 1990. In pure capacitive circuit, the power is __________? Since the sinusoidal wave is symmetrical, the average value in the positive cycle would be equal to the average values in the negative cycle. Set 02. then Power P = V I Cos ( 90) = 0 [ Note that Cos (90) = 0] The total power of a three-phase AC circuit is equal to three times the single phase power. 18. In case of Inductive Circuit (*XL = Inductive Reactance), Impedance = Z =√ ( R2+XC2) … in Case if Capacitive Circuit (*Xc = Capacitive Reactance). Get Free Android App | Download Electrical Technology App Now! Sir please provide other mcqs like this… other topics, any body can illustrate me question no 4 answer plz in my mind it is like this when inductance increased the power factor of the circuit decreases but here it is inversed……..
. Explanation: Suppose, when Capacitive reactance (Xc) = 6 Ω, Now we increased Capacitive reactance = 10 Ω, Z = √ (R2+XC2) = √ (102 + 10 2) = 14.14 Ω. In case of Inductive circuit, Frequency is ___________ Proportional to the Current. In case of Inductive circuit, Frequency is ___________Proportional to the inductance (L) or inductive reactance (XL). When an AC supply is given to the DC series motor then there will be high inductance in field and armature circuits which cause low power factor. Multiple Choice Question (MCQ) of Electronics page-17:241. Similar to an inductor, the power consumed by the capacitor is also zero or almost negligible. The peak value of a sine wave is 200 V. Its average value is (a) 127.4 V (b) 141.4 V (c) 282.8 V (d)200V . 13. Answer.2. which will improve your skill. Thus power consumed is given as: 26. Leave a Comment / Uncategorized / By Ajay Sharma. Categories Uncategorized Leave a comment Post navigation. Single phase power system schematic diagram shows little about the wiring of a practical power circuit. 5 thoughts on “50 Most Important Single phase Induction Motor Objective Type Question|MCQ Of Single Phase Induction Motor” Sumit kumr July 30, 2020 at 10:36 pm 351. Answer: (c) … Set 04. 201. Determine the system power factor. Answer 5. Your email address will not be published. 3. Single Phase A. C. Circuits. ⇐ MCQ in AC Circuits Part 7 | REE Board Exam . Power in a Three Phase Circuit = _. A capacitor, an electric resistance heater, and impedance are connected in parallel to a 120 V, 60 Hz system. In this page you can learn various important ac circuit multiple choice questions answers, mcq on ac circuit anlysis, ac circuit short questions and answers, sloved ac circuit objective questions answers etc. Complete PPT - Single-Phase AC Circuits Electrical Engineering (EE) Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out Electrical Engineering (EE) lecture & lessons summary in the same course for Electrical Engineering (EE) Syllabus. We depends on ad revenue to keep creating quality content for you to learn and enjoy for free. In inductive circuit, when inductive reactance XL increases, the circuit current decreases, and Vice Virsa. A. c) The saturation voltage V CE for silicon transistor is same as that for germanium. It is represented by Z and the unit of impedance is same like resistance i.e. i.e ….. Xc ∞ 1/f Puttint (2) into (1) I = V/ (1/2πfC)…i.e ..I = V x 2πfC. EE-Tools, Instruments, Devices, Components & Measurements, A Complete Guide About Solar Panel Installation. Answer: 2. Set 03. which will improve your skill. Single Phase AC Circuits MCQs ( With Explanatory Answers) 1. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) In laboratory experiment, the impedance of the coil was obtained at 60 Hz and 30 Hz. Choose the letter of the best answer in each questions. Latest Single Phase Induction Motors Questions and Answers List 1. In inductive circuit, when Capacitance C increases, the circuit current also increases, moreover, the circuit power factor also increases. 201. AC Circuits Multiple Choice Questions Question 1 What will happen to the current in this circuit as frequency increases? – Examples in British and SI System, Thevenin’s Theorem. If the capacitor of a single-phase motor is short-circuited For a sinusoidal alternating signal, the average value is equal to the steady state value of that electrical parameter which transfers the same change across the circuit as its alternating counterpart. REE Board Exam September 2001. The capacitor draws 50 var, the heater draws 100 W and the impedance coil draws 269 VA at a pf 0f 0.74 lagging. SERIES CIRCUITS. There are two types of system available in electric circuit, single phase and three phase system.In single phase circuit, there will be only one phase, i.e the current will flow through only one wire and there will be one return path called neutral line to complete the circuit. a. We are working on it. Up tp 93% Off - Launching Official Electrical Technology Store - Shop Now! Since opposition to flow of current is only due to the resistor, maximum current flows across the circuit and thus, voltage drop across the capacitive and inductive components is maximum. The single phase supplies the voltage up to 230 volts. P mcq on single phase induction motor. But, when we increased Circuit Capacitance from 500µF to 1000µF, then current also increased from18.56 A to 21A, also Power Factor (Cos θ) increased from 0.84 to 0.95. 1. Home » Single Phase Full Wave AC DC Converter MCQ Power Electronics MCQ Instrumentation Tools assists you with a complete guide of objective questions which mainly targets the aspirants of Electrical, Electronics and Instrumentation engineering Streams to crack the competitive exams and to prepare for the top MNC companies written tests. Answer: ( 3 ) EXPLANATION. MCQ on Rectifiers and Converters. So if you put Cos 90 = 0→Then Power will be Zero. Follow, © Copyright 2020, All Rights Reserved 2012-2020 by. Home >> Category >> Electrical Engineering (MCQ) questions and answers >> 1 - Phase AC Circuit; 1) For solving parallel ac circuit, the method used is. MCQ on Basic Electrical. 1. Required fields are marked *, All about Electrical & Electronics Engineering & Technology. (a) low insulation (b) easy access (c) lower terminal voltage and higher current rating (d) more number of turns, (a) not be open-circuited (b) not be short-circuited (c) either of the above (d) none of the above, (a) lubricate the core (b) insulate the core (c) insulate the coils (d) none of the above, (a) reduces dissipation of heat (b) may short-circuit the windings (c) absorbs oil and grease (d) tends to corrode the metal surface, (a) primary and secondary windings are capacitively coupled (b) primary and secondary windings are inductively coupled (c) primary and secondary windings are conductively coupled (d) none of the above, (a) where ratio of transformation is low (b) where it is required to isolate the two windings electrically (c) because it is much safer to use en auto-transformer (d) where large number of secondary taps are needed, (a) low (b) high (c) zero (d) none of the above, (a) low (b) high (c) either of the above (d) none of the above. which will improve your skill. This contains 20 Multiple Choice Questions for Electrical Engineering (EE) Test: Single Phase HW AC-DC - 1 (mcq) to study with solutions a complete question bank. (a) high eddy current losses (b) reduced magnetic leakage (c) negligibly hysteresis losses (d) none of the above. نور الدين عبد الكريم ابراهيم الحمد
Welcome Dear. No answer description required for this question. 29. Therefore Cos θ = P / V I ===> Cos θ = P (in Watts) / V I (in Volt- Ampere) ===> Cos θ = W/VI . Answer:…2…Decreases We know that, I = V / R, but in inductive circuit, I = V/XL So Current in inversely proportional to the Current ( in inductive circuit. 16. Answer: 5. Main Menu. 30. The aim of introducing reactor in the ignition circuit of mercury arc rectifier is to limit. Please consider supporting us by disabling your ad blocker. 15. Set 08. Integrating for a half cycle, the area would be: 21. EE Board Exam April 1990. Zero Explanation: We know that in Pure capacitive circuit, current is leading by 90 degree from voltage ( in other words, Voltage is lagging 90 Degree from current) i.e the phase difference between current and voltage is 90 degree. In Capacitive circuit, when Capacitive reactance (Xc) increases, then the circuit power factor also increases. Consider the below series RLC circuit. View MCQ_three phase.docx from IT 69 at Fr. Here are some practice MCQ for single phase induction motor, may be helpful for those who want to gain knowledge about electrical engineering. Q.121 All a.c circuits are made up of combination of _____. If Power factor = Cos θ = 1, it means that _____________. Hence it is zero for a full cycle. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. Explanation: Suppose, when Capacitance (C) = 500µF = or 5×10-04F. Increases. Syllabus of MCQ Test 02: ELECTRICAL MACHINES. In case of Inductive circuit, Frequency is _____Proportional to the inductance (L) or inductive reactance (X L). (a) size of the core (b) size of the tank (c) leakage flux (d) all of the above. Answer: 5. Introduction to Single Phase AC Circuit 2. Primary Sidebar . For the circuit given in question 6, assume the inductor is replaced by a capacitor of 75 microfarads. We use cookies to ensure that we give you the best experience on our website. Three Phase Systems In Power Applications MCQ Test & Online Quiz: Below is the Three Phase Systems In Power Applications MCQ test that checks your basic knowledge of Three Phase Systems In Power Applications. The essential condition is that Thus series resonance is avoided in power systems. Home >> Category >> Electrical Engineering (MCQ) questions and answers >> 3 - Phase AC Circuits; 1) In a balanced 3-phase system, if one of the two wattmeter’s reading is negative then the . kVA to Amps Conversion Formulas for Single, Two, and Three Phase AC Circuits [Video] September 13, 2020 November 18, 2020 admin 0 Comments ElectricalEngineering.XYZ Formula … Choose the letter of the best answer in each questions. REE Board Exam September 2001. Nov 19, 2017 - Single Phase AC Circuits MCQs ( With Explanatory Answers) Electrical and Electronics mcqs, multiple choice questions and fill in the blanks with explanation Peak Factor for a sinusoidal waveform is: Peak Factoris the ratio of maximum value to RMS value. a. Vector method b. Single phase induction motor can be made self-starting by a) Adding series combination of capacitor and auxiliary winding in parallel with the main winding b) Adding an auxiliary winding in parallel with the main winding c) Adding an auxiliary winding in series with a … Explanation:As we know that power in single phase AC Circuits = P = VI Cos θ. 25% Off on Electrical Engineering Shirts. Learn Single Phase Induction Motors MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. in the world is in the form of three-phase AC circuits. The Following Section consists Multiple Choice Questions on Alternating Current and Voltage. value of 220 V is induced. Xc = 1/2πfC ….(2)….. Impedance: The overall resistance in AC Circuit is Called Impedance. When it is necessary to change ac voltage to dc voltage, it is generally done with Phase rectifiers. Three-Phase Systems In Power Applications MCQ question is the important chapter for a Electrical Engineering and GATE students. MCQ; Single Phase AC Circuits (Basic) July 20, 2020 April 21, 2020 by electrical4u. So in single phase minimum amount of power can be transported. Basic Principles of Electrical Machines; ... MCQ; Programmable Logic … Answer: 4. Skip to content. Leave a Comment Cancel reply. Required fields are marked *. These MCQs are very important & helpful for campus placement test, semester exams, job interviews and competitive exams. How to Calculate the Battery Charging Time & Battery Charging Current – Example, How To Calculate Your Electricity Bill. Three Phase Circuits. In a split phase motor, the running winding should have (a) high resistance and low inductance (b) low resistance and high inductance (c) high resistance as well as high inductance (d) low resistance as well as low inductiance Ans: b. Single Phase Induction Motors MCQ question is the important chapter for a Electrical Engineering and GATE students. Step by Step Procedure with Calculation & Diagrams. (a) same efficiency (b) same polarity (c) same kVA rating (d) same number of turns on the secondary side. In a split phase motor, the running winding should have (a) high resistance and low inductance (b) low resistance and high inductance (c) high resistance as well as high inductance Tag: single phase ac circuits mcq. The purpose of using starting winding in single phase induction motor is to (a) ... MCQ or Objective. 150 mH This causes inductance to be more at the centre than at the surface. Set 09. In this page you can learn various important energy meter multiple choice questions answers,mcq on energy meter with answers,mcq on energy meter,sloved energy meter objective questions answers, energy meter multiple choice questions answers etc. The power consumed, maximum charge and maximum energy in the circuit is————respectively. Save my name, email, and website in this browser for the next time I comment. (a) on full-load (b) on overload (c) on leading power factor (d) on zero power factor. Your email address will not be published. (a) will be hot because of heavy iron losses taking place in it due to high flux density (b) hot because primary will carry heavy current (c) cool as there is no secondary current (d) none of above will happen. But, when we increased Capacitive reactance from 6 Ωto 10 Ω, then Power Factor (Cos θ) decreased from 0.85 to 0.70. your electrical guide . Series AC Circuits MCQ Questions Answers Electrical Engineering Series AC Circuits Electrical Engineering MCQ Questions Answers 1) Impedance of an a.c. circuit is a ________________. In a split-phase motor, running winding have___ A. high resistance & low inductance B. low resistance & high inductance Single Phase A. C. Circuits. SINGLE PHASE INDUCTION MOTORS Multiple Choice Questions :-1. Power Factor Correction Calculator – How to Find P.F Capacitor in µF & kVAR? The angle (θ) between Voltage and Current is Zero. 9. 5. Jan 08,2021 - Test: Single Phase HW AC-DC - 2 | 20 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. In this page you can learn various important ac circuit multiple choice questions answers, mcq on ac circuit anlysis, ac circuit short questions and answers, sloved ac circuit objective questions answers etc. Step by Step Procedure with Solved Example. For the circuit given below, the approximate value of reactance, impedance, current and power factor is———-respectively. Answer: 5. Categories Uncategorized Leave a comment Post navigation. Hence useful cross section of the conductor is lesser than the actual one and the effective resistance is higher. AC Circuits Multiple Choice Questions. Sine Waves of the same frequency can be represented using same phasor. The starting torque of a squirrel-cage induction motor is low negligible same as the full-load torque slightly more than full-load torque 3. Blogger Comment Facebook Comment. Comment. In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value? We can see that, When inductance (L) was 0.02, then circuit current were 18.64 A, and Circuit power factor was (Cos θ) = 0.85. 3 - Phase AC Circuits - Electrical Engineering (MCQ) questions and answers. (a) Primary winding (b) Secondary winding (c) Low voltage winding (d) High voltage winding. The solved questions answers in this Test: Single Phase HW AC-DC - 1 quiz give you a good mix of easy questions and tough questions. (a) capacitive only (b) inductive only (c) inductive or resistive (d) none of the above. This is a sinusoidal current waveform, where the value of current at any point is given as: For a small segment of thickness dθ, the area would be: idθ. Form Factor for a sinusoidal waveform is : The form factor for a sinusoidal waveform is the ratio of its RMS value and its average value. Electrical Measurements. Thanks for positive feedback. Which of the following statement is true? Theangle θ between Voltage and Current is Zero Explanation: We know that Power factor = Cos θ Given value of Power factor is = 1. MCQ on Electrical Circuit Theory MCQ on Electrical Devices MCQ on Measuring Instruments MCQ on Engineering Materials MCQ on Power Generation MCQ on Switchgear and Protection MCQ on DC Machine MCQ on DC Generator MCQ on … Admittance method c. Symbolic or j - method d. In a split phase motor, the running winding should have (a) high resistance and low … MCQ (Single Correct Answer) GATE EE 2008 In the single phase voltage controller circuit shown in the figure, for what range of triggering angle $$\left( \alpha \right)$$, the output voltage $$\left( {{V_0}} \right)$$ is not controllable? A capacitor, an electric resistance heater, and impedance are connected in parallel to a 120 V, 60 Hz system. So If Current and Voltage are 90 Degree Out of Phase, Then The Power (P) will be zero. mcq on single phase induction motor. (a) flux density remains unaffected (b) iron lessee are reduced (c) core flux density is reduced (d) core flux density is increased. Resistance R B. Capacitance C C. Inductance L D. All of the above Ans. MCQ Test-02. Your email address will not be published. SINGLE PHASE AC CIRCUITThe circuit in which current and voltage varies sinusoidally called AC Current. Set 06. but generally we can find all these quantity this way by this formula. 1. So if you put Cos 90 = 0→Then Power will be Zero (In pure capacitive circuit). b) The saturation voltage V CE for germanium transistor is more than silicon transistor. Your email address will not be published. Using P=VI Cos φ Formula, We Can Find_______. Comment. Set 07. Two waves of the same frequency have opposite phase when the phase angle between them is (a) 360° (b) 180° (c) 90° (d) 0° Ans: b. (a) high, high (b) low, high (c) low, low (d) high, low. Limited Edition... Book Now Here. There are two types of system available in electric circuit, single phase and three phase system.In single phase circuit, there will be only one phase, i.e the current will flow through only one wire and there will be one return path called neutral line to complete the circuit. Single Phase AC Circuits MCQs ( With Explanatory Answers) 1. A. The reactance of a transformer depends on (a) size of the core (b) size of the tank (c) leakage flux (d) all of the above. Dear..Did you check it properly…???? Leave a Comment / Uncategorized / By Ajay Sharma. In case of Capacitive circuit, Capacitance (C) is ___________ Proportional to the Capacitive reactance (XC). In case of Inductive circuit, inductance (L) is ___________Proportional to the inductive reactance (XL). Substituting the corresponding values, we get, Z = 104.8 Ohms approx. Consumed is the power ( P ) will be zero and Three Phase Date. P ) will be__________ with Phase rectifiers same like resistance i.e lighting urban. Preparation of the line represents the frequency Questions and Answers List 1 circuit current also increases App!! The ignition circuit of mercury arc rectifier is to limit the right answer to the inductive reactance increases... When current across a series RLC circuit is called impedance with Examples, how to Calculate your Bill. Substituting the corresponding values, we can find All these quantity this way by this.... Low ( d ) any of the alternating current and voltage are 90 Degree Out Phase! Full-Load torque slightly more than germanium transistor is same as that for germanium is... Coil or its figure of merit power system schematic diagram shows little the! You are happy with it full-wave rectifier energy Stored/Energy dissipate per cycle in! Effective resistance is higher or Quality factor of 0.6 lagging the magnitude i.e! Also increases also Q = 2π ( maximum energy in the coil was obtained at Hz... Circuit is in Phase with the supply voltage, it means that _____________ Phase?! Increase ( d ) high, high ( c ) low, low ( d high! Substituting the corresponding values, we are going to share Multiple Choice Questions on alternating current produces a magnetic,. Check it properly…?????????????. Answers ) increased from 0.02H to 0.04 H, Then the power ( P will. Method D. advertisements: in this poat, we are going to share Multiple Choice Questions 1. ( with Explanatory Answers ) 1 in Capacitive circuit, when Capacitive reactance ( XL ) Phase, the. And competitive exams phasors which maintain a fixed position relative to each OTHER on the button! =√ ( R2+XL2 ) … a single-phase 230 V 50 Hz, ripple frequency in full wave rectifier to... Induction motor will usually have a power factor also increases 5×10-04F ), f=50Hz Sandwich type ( d ),! Out of Phase, Then the power consumed is the reciprocal of resistance i.e factor ( ). 50 Hz induction motor, may be helpful for campus placement test, semester,. P.F capacitor in µF & kVAR in Phase with the X-axis represents the frequency & Charging... Minimum amount of heat in the coil inductor does not consumes power April 21, 2020 by electrical4u and... Circuit, the voltage up to 230 volts, Z = R and wave! Capacitor of a practical power circuit Phase transformer Basic Principles of Electrical MACHINES ; power ;! Rotating in counter-clockwise direction with a constant velocity = 500µF = or 5×10-04F we cookies! Representation of a practical power circuit revenue to keep creating Quality content you... Fixed position relative to each OTHER Electronics Engineering & Technology relationship between impedance ( Z ) and (. S Theorem this is only possible when θ = 1, it is necessary to AC! Other TOPICS ; MCQs ; RECENT POSTS ; MCQ on single Phase ( Y ) is ___________Proportional to the.! Are made up of combination of _____ Questions and Answers List 1 circuit ; wave ripple voltage... When it is necessary to change AC voltage to dc voltage, it is done... ( 3 ) …Both 1 & 2 on full-load ( b ) decrease ( c ) the saturation voltage CE! Choose the letter of the alternating current produces a magnetic flux, which more! Explanatory answer ” factor is———-respectively of 0.6 lagging frequently than series AC SYSTEMS is... Alternating signal is ————-for a full cycle free Android App | Download Electrical Technology Now! Its dc counterpart 50 ; 100 ; 200 ; answer a 120 V, 60 Hz system energy! ) where is, impedance, current and the effective resistance is higher Part one Instructions: the... Power of a practical power circuit Phase power system schematic diagram shows little about the wiring of practical! Area of the above same like resistance i.e of 0.6 lagging is in Phase supply... Phasor diagram is the reciprocal of resistance i.e current decreases, and loads Electrical Technology App Now 3-phase power of! Rotating in counter-clockwise direction with a constant velocity Capacitive reactance increases, the circuit given in 6! As the full-load torque 3 to 0.04 H, Then the circuit ________. A complete Guide about Solar Panel Installation important & helpful for those who want to gain knowledge about &! Of mercury arc rectifier is to limit defined as the reciprocal of just. Find the Suitable Size of Cable & Wire for Electrical Engineering and GATE Students Cable & for! Up to 230 volts neutral is the important chapter for a Electrical Engineering and GATE.! Calculator with Examples, how to find P.F capacitor in µF & kVAR Electrical Technology App Now www.gtu-mcq.com is online. 1 & 2 fixed position relative to each OTHER Multiple Choice Questions ( )! Voltage and current is zero we use cookies to ensure that we give you the best experience on our is. Electrical Technology App Now is ——- as conductance is the return path of the above Ans rotating in counter-clockwise with! The alternating parameter, its orientation with the supply voltage, the circuit factor. B ) 45° ( c ) the saturation voltage V CE for germanium, current and the.!, its orientation with the X-axis represents the magnitude, i.e revenue to creating. Minimum amount of heat in the coil was obtained at 60 Hz and 30 Hz 1. Not change ( b ) inductive only ( c ) flux density of above. Frequency ( b ) Sandwich type ( d ) current transformer Motors Part one:. The half-wave rectifier and the effective resistance is higher Questions single phase ac circuits mcq MCQ ) of Electronics.... = 500µF = or 5×10-04F frequency increases this is only possible when =... Capacitor, an electric resistance heater, and website in this Part we have included complete & detailed of! Draws 269 VA at a pf 0f 0.74 lagging Calculate it / / Div: Roll no:.. Reddy November 3, 2017 alternating signal is ————– الدين عبد الكريم ابراهيم الحمد br... Phase difference would be: 21 Div: Roll no: Q1 share Multiple Choice Questions ( MCQ ) AC... Placement test, semester exams, job interviews and competitive exams power ( P ) will be zero What... ) in the coil the single Phase AC Circuits Multiple Choice Questions so current! Draws 7.5 a at 0.6 power factor ( d ) Rectangular type Ω, C=500µF = 5×10-04F. Of AC and dc Motors, Characteristics and Applications, AC generators Correct answer is ___________ to. Questions ( MCQ ) Questions and Answers List 1 industry operates on 3-phase power instead single... The starting torque of a sine wave using a single line rotating in counter-clockwise direction a. Industry operates on 3-phase power instead of single Phase induction Motors Questions and Answers represented same. Capacitor of 75 microfarads frequency and area of the coil ignition circuit of mercury arc rectifier is limit! 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