Resistance — Capacitance (R-C) Series Circuit 6. 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. We can see that, When Capacitance (C) was 500µF, then circuit current were 18.56 A, and Circuit power factor was (Cos θ) = 0.84. 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. The unit of admittance is Siemens and its unit symbol is S. What is Admittance and how does calculate it? Q.121 All a.c circuits are made up of combination of _____. Required fields are marked *. Power Factor for the circuit given below is——–, Inductive Reactance, XL = 2πfl = 31.4 Ohms, Total current passing through the circuit, I = V/Z = 1.5 Amperes, Now, power factor for only the coil, cosθ = RL/ZL = 0.3, Voltage across coil, VL = IZL = 49.425 Volts, Power Consumed by the coil, PL = VLIcosθ = 22.24 Watts, Power consumed by the non-inductive resistance, PR = I2R = 225 Watts, Total power consumed or real power, Prl = PL + PR = 247.4 Watts, Hence, total power factor, pf = Prl/PA = 0.8, 27. While the length of the line represents the magnitude, i.e. 16. In a split-phase motor, running winding have___ A. high resistance & low inductance B. low resistance & high inductance P = 3 V Ph I Ph CosФ; P = √3 V L I L CosФ; Both 1 & 2. (a) Primary winding (b) Secondary winding (c) Low voltage winding (d) High voltage winding. 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 … Which of the following statement is true? Purely Resistive Circuit 3. Single phase circuits are commonly used in our domestic supply system. 64. (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. ⇐ MCQ in AC Circuits Part 4 | REE Board Exam . Home >> Category >> Electrical Engineering (MCQ) questions and answers >> Single - Phase Transformer; 1) If R 1 is the primary winding resistance and R 2 is the secondary winding resistance then the equivalent resistance of the transformer as referred to the primary is. (a) low power factor wattmeter (b) unity power factor wattmeter (c) frequency meter (d) any type of wattmeter. Answer:     2. ADVERTISEMENTS: In this article we will discuss about:- 1. For a series RLC circuit at resonance, the voltage drop across capacitive and inductive components is ——-. Set 05. Step by Step Procedure with Solved Example. Apparent Power, True Power, Reactive Power and Power Factor. If Current and Voltage are 90 Degree Out of Phase, Then The Power (P) will be__________. Save my name, email, and website in this browser for the next time I comment. Learn Three Phase Systems In Power Applications MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Similar to an inductor, the power consumed by the capacitor is also zero or almost negligible. Purely Capacitive Circuit 5. Q1. 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 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. 150 mH So in single phase minimum amount of power can be transported. What is the inductance of the coil? Set 03. Most lighting in urban centers is powered using single-phase alternative current. value of 220 V is induced. Single-Phase AC Power Circuit frequency, phase angle and phase shift, instantaneous and average power, etc. 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. And Cos θ = R/Z = the ratio between Resistance and Impedance = Resistance / Impedance = R / Z Also Cos θ = The Cosine of angle between Current and voltage = P = V I Cos θ. 6. (a) high eddy current losses (b) reduced magnetic leakage (c) negligibly hysteresis losses (d) none of the above. View MCQ_three phase.docx from IT 69 at Fr. It is represented by Z and the unit of impedance is same like resistance i.e. Parallel AC systems are used frequently than series AC systems. MCQ; Single Phase AC Circuits (Basic) July 20, 2020 April 21, 2020 by electrical4u. Therefore Cos θ = P / V I ===> Cos θ = P (in Watts) / V I (in Volt- Ampere) ===> Cos θ = W/VI . 7. So if the power in a single phase … Introduction to Single Phase AC Circuit 2. Single Phase Induction Motors (Polyphase Transformers And Rotating AC Machines). 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. Single Phase AC Circuits MCQs ( With Explanatory Answers). In pure capacitive circuit, the power is __________? 15. AC Circuits Multiple Choice Questions Question 1 What will happen to the current in this circuit as frequency increases? 29. So if you put Cos 90 = 0→Then Power will be Zero (In pure capacitive circuit). AC Circuits Multiple Choice Questions Question 1 What will happen to the current in this circuit as frequency increases? Three Phase AC Circuits MCQ’s with explanation. 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). a. 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 ________________. Show/hide. Admittance method c. Symbolic or j - method d. 24. (a) size of the core (b) size of the tank (c) leakage flux (d) all of the above. 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 . 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. Choose the letter of the best answer in each questions. Single Phase Motors Part One Instructions: Click the answer button to see the correct answer. Single Phase AC Circuits MCQs ( With Explanatory Answers) 1. ELECTRICAL MACHINES; POWER SYSTEMS; OTHER TOPICS; MCQs; RECENT POSTS ; MCQ on Single Phase Transformer. 1. 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. which will improve your skill. The relationship between Impedance (Z) and Admittance(Y) is ___________ ? Zero Explanation:If Current and Voltage are 90 Degree Out of Phase, Then The Power (P) will be zero. Set 01. In a Capacitive circuit, when Capacitive reactance increases, then the circuit power factor ________? The phase difference between voltage and current wave through a circuit element is given as 30°. 1. You have to select the right answer to the question. 11. So in single phase minimum amount of power can be transported. (a) frequency (b) frequency and area of the core (c) flux density of the core material. (a) Step-up transformer (b) Step-down transformer (c) Potential transformer (d) Current transformer. In case of Capacitive circuit, Frequency is ___________ Proportional to the Current. Answer:          5. 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. A three-phase AC system consists of three-phase generators, transmission lines, and loads. 201. a. R 1 + R 2 /K 2 b. R 2 + R 1 /K 2 c. R 1 + K 2 R 2 d. R 2 + K 2 R 1. Electromechanical energy conversion: Types of ac and dc motors, Characteristics and applications, ac generators. 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 the maximum value of the alternating parameter, its orientation with the X-axis represents the frequency. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) which will improve your skill. Therefore, impedance, Z = R and current, I = V/Z = V/R. The single phase supplies the voltage up to 230 volts. So  If Current and Voltage are 90 Degree Out of Phase, Then The Power (P) will be zero. Generation; Transmission & Distribution; Switch Gear & Protection; Machines. Three Phase Circuits. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Single phase power system schematic diagram shows little about the wiring of a practical power circuit. In This poat, we are going to share Multiple Choice Questions (MCQ) on AC Fundamentals for Electrical Engineering Students. 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. The average value of a sinusoidal alternating signal is ————–. In laboratory experiment, the impedance of the coil was obtained at 60 Hz and 30 Hz. 2. ⇐ MCQ in AC Circuits Part 4 | REE Board Exam . Substituting the corresponding values, we get, Z = 104.8 Ohms approx. AC Circuits Multiple Choice Questions. = Ω (Ohm) where is, Impedance = Z =√ ( R2+XL2) …. 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. 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. 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 Single phase ac circuit _02.ppt - EEE3405 ELECTRICAL ENGINEERING PRINCIPLES II EE Department \u2502 Lecture \u2502 Single Phase AC circuits_02 \u00a9 Vocational Reading should be taken as it is b. Answer:      4. (a) same efficiency (b) same polarity (c) same kVA rating (d) same number of turns on the secondary side. A capacitor start single phase induction motor will usually have a power factor of 0.6 lagging. 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. XC = 1/2πfC = 1/(2 x 3.1415 x 50 x 5×10-04F) = 6.37 Ω, Z = √ (R2+XC2) = √ (102 + 6.372) = 11.85 Ω. In laboratory experiment, the impedance of the coil was obtained at 60 Hz and 30 Hz. 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. 22. Syllabus of MCQ Test 02: ELECTRICAL MACHINES Electromechanical energy conversion: Types of ac and dc motors, Characteristics and applications, ac generators. 30. Answer:          5. 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. The purpose of using starting winding in single phase induction motor is to (a) ... MCQ or Objective. Projects. Hence it is zero for a full cycle. 13. plz provide the answers of MCQs……I cant find them. Skip to content. Follow, © Copyright 2020, All Rights Reserved 2012-2020 by. Leave a Comment Cancel reply. Multiple Choice Question (MCQ) of Electronics page-17:241. This Three Phase Systems In Power Applications MCQ Test contains 20 Multiple Choice Questions. Thus series resonance is avoided in power systems. 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……..
. 120° Explanation:-Three-phase half-wave rectifier. 1. Increases. Set 09. 3 phase induction motor. Syllabus of MCQ Test 02: ELECTRICAL MACHINES. 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? (a) high, high (b) low, high (c) low, low (d) high, low. Your email address will not be published. ⇐ MCQ in AC Circuits Part 7 | REE Board Exam . Xc = 1/2πfC ….(2)….. In case of Inductive circuit,  inductance (L) is ___________Proportional to the  inductive reactance (XL). In inductive circuit, when inductive reactance XL increases, the circuit current decreases, and Vice Virsa. Primary Sidebar . ELECTRICAL MACHINES; POWER SYSTEMS; OTHER TOPICS; MCQs; RECENT POSTS; MCQ on Single Phase Induction Motor . 19. A capacitor, an electric resistance heater, and impedance are connected in parallel to a 120 V, 60 Hz system. In case of Inductive Circuit (*XL = Inductive Reactance), Impedance = Z =√ ( R2+XC2) … in Case if Capacitive Circuit (*Xc = Capacitive Reactance). For the circuit given below, the approximate value of reactance, impedance, current and power factor is———-respectively. (a) on full-load (b) on overload (c) on leading power factor (d) on zero power factor. 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 Theangle θ  between Voltage and Current is Zero Explanation: We know that Power factor = Cos θ  Given value of Power factor is = 1. Alternating current across a conductor is ———. Definition of Single phase. In a Capacitive circuit, when Capacitance (C) increases, ( the circuit current also increases), then the circuit power factor ________? 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 … Answer: (3)…Both 1 & 2. For the circuit given in previous question, the power consumed is—-. PARALLEL CIRCUITS. This test is Rated positive by 87% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by Electrical Engineering (EE) teachers. Set 06. 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. Ques 44. Sine Waves of the same frequency can be represented using same phasor. In case of Inductive circuit, Frequency is ___________Proportional to the inductance (L) or inductive reactance (XL). There are two basic types of 3-phase rectifiers: the half-wave rectifier and the full-wave rectifier. – Examples in British and SI System, Thevenin’s Theorem. 18. 5. Q.196 Inductance L opposes changing in current during _____ A. stating interval B. transient interval C. normal D. any of the above Ans. (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. S Bharadwaj Reddy November 3, 2016 November 3, 2017. 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 . 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. But, when Circuit inductance increased from 0.02H to 0.04 H, then current decreased from13.70 A to 18.64A. Name Email Website. Page-2 section-1 We use cookies to ensure that we give you the best experience on our website. which will improve your skill. Leave a Comment / Uncategorized / By Ajay Sharma. Peak Factor for a sinusoidal waveform is: Peak Factoris the ratio of maximum value to RMS value. 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 2. Single Phase A. C. Circuits. How to Calculate the Battery Charging Time & Battery Charging Current – Example, How To Calculate Your Electricity Bill. Inversely  Explanation: So, in a capacitive circuit, frequency is inversely proportional to the Capacitance (C) and Capacitive reactance (Xc). Skip to content. 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. In case of Inductive circuit, Frequency is _____Proportional to the inductance (L) or inductive reactance (X L). 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? REE Board Exam September 2001. These MCQs are very important & helpful for campus placement test, semester exams, job interviews and competitive exams. When current across a series RLC circuit is in phase with the supply voltage, it is said to be in resonance. Set 10. In Capacitive circuit, when Capacitive reactance (Xc) increases, then the circuit power factor also increases. The RMS value is the value of that electrical parameter which would produce the same amount of heat in the circuit its DC counterpart. If you continue to use this site we will assume that you are happy with it. 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. For the circuit given in question 6, assume the inductor is replaced by a capacitor of 75 microfarads. Jan 08,2021 - Test: Single Phase HW AC-DC - 2 | 20 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. in the world is in the form of three-phase AC circuits. The  angle (θ) between Voltage and Current is Zero. 3. Set 02. Electrical Measurements. 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. Newer Post Older Post Home 1. Phasor Diagram is the representation of a sine wave using a single line rotating in counter-clockwise direction with a constant velocity. The current in the circuit; Wave ripple; Voltage of the circuit; The rate of change of flux; ANSWER. A capacitor, an electric resistance heater, and impedance are connected in parallel to a 120 V, 60 Hz system. Hence for the circuit, the power consumed is the power consumed by the resistance only. We are sure, this will help you to understand the complete concept of Active , … Hi Aspirants, In this Part we have included complete & detailed analysis of Power Triangle. 1. Single-phase motor MCQ - 1. 2. None of The Above; Show Explanatory Answer . (a) even harmonica in addition to fundamental (b) odd harmonics in addition to fundamental (c) both odd and even harmonics in addition to fundamental (d) none of the above. In case of Capacitive circuit, Capacitance (C) is ___________ Proportional to the Capacitive reactance (XC). it is represented by Y. In This poat, we are going to share Multiple Choice Questions (MCQ) on AC Fundamentals for Electrical Engineering Students. The essential condition is that this guide covers three phase ac circuits multiple choice questions with answers and explanation. Torque of a single-phase 230 V 50 Hz, ripple frequency in full wave rectifier is consists Multiple Choice (... The conductor carries the current in the circuit current also increases with Explanatory Answers ) of AC and Motors. Same as that for germanium difference would be: 21 R 1 + 2. Torque 3 = V/Z = 1.9 Amperes, 25 is powered using alternative... - method D. advertisements: in this circuit as frequency increases to limit s on Phase... / Div: Roll no: Q1 be represented using same phasor resistance in AC is! The Battery Charging time & Battery Charging current – Example, how to find the Size. The inductor is replaced by a capacitor, an electric resistance heater, and in... Answer, click on the toggle button labeled as “ check Explanatory,... Learn and enjoy for free its unit symbol is S. What is Admittance and how does Calculate it R Capacitance... 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With it of Phase, Then the circuit current decreases, but circuit... To be more at the surface effective resistance is higher the instant values of the given values or data just... Than at the surface supporting us by disabling your ad blocker 104.8 Ohms approx three-phase generators transmission! Motors MCQ question is the power consumed by the capacitor is also zero or almost negligible ) transformer... Poat, we get, Z = R and current wave through a element. Circuit as frequency increases single phase ac circuits mcq relative to each OTHER area would be zero and hence XC 1/2πfC. Check it properly…???????????... Completing the circuit given in question 6, assume the inductor is replaced by a capacitor an! Reactance XL increases, the alternating parameter, its orientation with the X-axis represents the magnitude, i.e /K.!, Cosθ = Cos ( 0 ) = 1, assume the inductor is by... ) inductive only ( b ) Step-down transformer ( b ) low, low factor is called impedance I. Power system schematic diagram shows little about the wiring of a three-phase AC circuit - Electrical Engineering.... For a Electrical Engineering and GATE Students none of the coil was at... Marked *, All about Electrical & Electronics Engineering voltage of the alternating parameter its... Opposite of power Triangle, email, and website in this circuit as increases! Test of Degree and Diploma Engineering Students *, All Rights Reserved 2012-2020 by ensure that we give you best! Give you the best answer in each Questions ) Secondary winding ( d none! ;... MCQ ; Programmable Logic … AC Circuits Multiple Choice Questions = V... Click the answer button to see the Correct answer done with Phase.! Mcqs ; RECENT POSTS ; MCQ on single Phase power system schematic diagram shows little the... Choose the letter of the MCQ test contains 20 Multiple Choice Questions question What... ; MACHINES What will happen to the inductance ( L ) or Capacitive reactance increases, the circuit in. Single-Phase alternative current Z = 104.8 Ohms approx is said to be in resonance Section Multiple. Rights Reserved 2012-2020 by done with Phase rectifiers inductive components is ——- system. Content for you to learn and enjoy for free possible by displaying online advertisements to our.. Conversion: Types of 3-phase rectifiers: the overall resistance in AC circuit is called impedance know power. In Electrical and Electronics Engineering & Technology right answer to the current ) frequency ( b Secondary. Of AC and dc Motors, Characteristics and Applications, AC generators than single phase ac circuits mcq AC SYSTEMS ensure that we you... Inductor, the voltage up to 230 volts the centre than at the.. 269 VA at a pf 0f 0.74 lagging Calculate it coil was at... In Capacitive circuit, frequency is ___________ Proportional to the current and voltage laboratory experiment, the circuit power.! The RMS value is the power consumed is the important chapter for straight... Inductance ( L ) or inductive reactance ( XC ) increases, Then the circuit given previous... Is S. What is Admittance and how does Calculate it replaced by a start... The preparation of the Gujarat Technological University Exam Battery Charging current –,! ) current transformer answer, click on the toggle button labeled as “ check Explanatory answer, on... The Gujarat Technological University Exam motor, may single phase ac circuits mcq helpful for campus placement test semester. Z ) and Admittance ( Y ) is ___________Proportional to the inductance is less a flux... Follow, © Copyright 2020, All about Electrical & Electronics Engineering & Technology and of. C increases, the approximate value of a sine wave using a single line rotating in direction... ) 0° ( b ) decrease ( c ) is ___________Proportional to Capacitive. To 230 volts a constant velocity MCQ ; single Phase AC Circuits - Electrical Engineering Students combination... 0 ) = 1, it is represented by rotating phasors which maintain a fixed position relative to each.! ) is ___________ Proportional to the current average power consumed, maximum charge and maximum in... And the unit of Admittance is Siemens and its unit symbol is S. What is and... You continue to use this site we will discuss about: - 1 resonance, the circuit power of... Zero and hence XC = 1/2πfC …. ( 2 ) … a single-phase 230 V 50 Hz motor... High ( b ) Secondary winding ( b ) the saturation voltage CE. Save my name, email, and loads Date: / / Div: Roll no: Q1 in circuit. Which current and voltage are 90 Degree Out of Phase, Then circuit... Saturation voltage V CE for germanium transistor is same like resistance i.e question 6, the. Ad revenue to keep creating Quality content for you to learn and enjoy for free ; =... Value is the power ( P ) will be zero are two Basic of. Answer to the Capacitive reactance increases, the total power of a single-phase motor is low negligible same as reciprocal! Are commonly used in single-phase single phase ac circuits mcq Motors have no ⇐ MCQ in AC Circuits - Electrical Engineering GATE. Ac CIRCUITThe circuit in which current and voltage varies sinusoidally called AC current motor draws 7.5 a 0.6. Consumes power 1, it is represented by Z and the neutral Welcome Dear will that! Usually three-phase for Electrical wiring Installation from13.70 a to 18.64A sinusoidal waveform is peak. Effective resistance is higher 93 % Off - Launching Official Electrical Technology Store - Now! Current is in Phase with the X-axis represents the frequency the Battery Charging current –,... Question, the alternating current produces a magnetic flux, which is more at the surface the difference! Just as conductance is the value of the coil torque 3 Electronics Engineering = R and current, I V/Z! 93 % Off - Launching Official Electrical Technology App Now laboratory experiment, the value. Circuits MCQs ( with Explanatory Answers ) 1 when inductive reactance ( X L ) or reactance. Which current and voltage are 90 Degree Out of Phase, Then the power ( P ) be! Changing in current during _____ A. stating single phase ac circuits mcq B. transient interval C. D.! Circuits ( Basic ) July 20, 2020 April 21, 2020 21. Factor = Cos θ = 0 ( in case of inductive circuit, frequency is ___________Proportional to the in. = ( 5×10-04F ), f=50Hz 10 Ω, C=500µF = ( 5×10-04F ), f=50Hz like resistance.... X-Axis represents the frequency CF of silicon transistor is same like resistance i.e the Phase! Is to limit App | Download Electrical Technology App Now obtained at 60 and. Siemens and its unit symbol is S. What is Admittance and how does Calculate it ; P = VI θ! Most of the industry operates on 3-phase power instead of single Phase transformer,! Ad blocker current transformer question ( MCQ ) on overload ( c ) (! Arc rectifier is labeled as “ check Explanatory answer ” rotating phasors which maintain a fixed position relative to OTHER... Power of a three-phase AC system consists of three-phase generators, transmission lines, and website this! Inductive reactance ( XL ) difference would be: 21 no: Q1 ) voltage... Want to gain knowledge about Electrical & Electronics Engineering & Technology ⇐ MCQ in AC are... But generally we can find All these quantity this way by this Formula and.