Electric CircuitsElectronic Engineering Mcqs 100+ MCQ & Answer Electric Circuits| page-03 |Electric Engineering MCQ And Answer January 27, 2025 DSN MARATHI 21. The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? A. VC and VR B. VL and VR C. VC and VL D. None of the above Answer Option : C 22. The period of a sine wave is _________ seconds. Its frequency is A. 20 Hz B. 30 Hz C. 40 Hz D. 50 Hz Answer Option : D 23. The power consumed in a circuit element will be least when the phase difference between the current and voltage is A. 180° B. 90° C. 60° D. 0° Answer Option : B 24. Form Factor is the ratio of A. Average value/r.m.s. value B. Average value/peak value C. r.m.s. value/average value D. r.m.s. value/peak value Answer Option : C 25. Capacitive reactance is more when A. Capacitance is less and frequency of supply is less B. Capacitance is less and frequency of supply is more C. Capacitance is more and frequency of supply is less D. Capacitance is more and frequency of supply is more Answer Option : A 26. Pure inductive circuit A. Consumes some power on average B. Does not take power at all from a line C. Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle D. None of the above Answer Option : C 27. Power factor of the following circuit will be zero A. Resistance B. Inductance C. Capacitance D. Both (B) and (C) Answer Option : D 28. The double energy transient occur in the A. Purely inductive circuit B. R-L circuit C. R-C circuit D. R-L-C circuit Answer Option : D 29. In any A.C. circuit always A. Apparent power is more than actual power B. Reactive power is more than apparent power C. Actual power is more than reactive power D. Reactive power is more than actual power Answer Option : A 30. Magnitude of current at resonance in R-L-C circuit A. Depends upon the magnitude of R B. Depends upon the magnitude of L C. Depends upon the magnitude of C D. Depends upon the magnitude of R, Land C Answer Option : A
21. The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? A. VC and VR B. VL and VR C. VC and VL D. None of the above Answer Option : C
22. The period of a sine wave is _________ seconds. Its frequency is A. 20 Hz B. 30 Hz C. 40 Hz D. 50 Hz Answer Option : D
23. The power consumed in a circuit element will be least when the phase difference between the current and voltage is A. 180° B. 90° C. 60° D. 0° Answer Option : B
24. Form Factor is the ratio of A. Average value/r.m.s. value B. Average value/peak value C. r.m.s. value/average value D. r.m.s. value/peak value Answer Option : C
25. Capacitive reactance is more when A. Capacitance is less and frequency of supply is less B. Capacitance is less and frequency of supply is more C. Capacitance is more and frequency of supply is less D. Capacitance is more and frequency of supply is more Answer Option : A
26. Pure inductive circuit A. Consumes some power on average B. Does not take power at all from a line C. Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle D. None of the above Answer Option : C
27. Power factor of the following circuit will be zero A. Resistance B. Inductance C. Capacitance D. Both (B) and (C) Answer Option : D
28. The double energy transient occur in the A. Purely inductive circuit B. R-L circuit C. R-C circuit D. R-L-C circuit Answer Option : D
29. In any A.C. circuit always A. Apparent power is more than actual power B. Reactive power is more than apparent power C. Actual power is more than reactive power D. Reactive power is more than actual power Answer Option : A
30. Magnitude of current at resonance in R-L-C circuit A. Depends upon the magnitude of R B. Depends upon the magnitude of L C. Depends upon the magnitude of C D. Depends upon the magnitude of R, Land C Answer Option : A
