# AC Circuit - Resistive Circuit objective questions (mcq) and answers

1.  In a purely resistive, the average power Pav is..........the peak power Pmax

A. Double

B. One-half of

C. One-fourth

D. Equal to

B. One-half of

2.  In a pure resistive circuit

A. Current lags behind the voltage by 90o

B. Current leads the voltage by 90o

C. Current can lead or lag the voltage by 90o

D. Current is in phase with the voltage

D. Current is in phase with the voltage

3.  For a purely resistive circuit the following statement is in correct

A. Work done is zero

B. Power consumed is zero

C. Heat produced is zero

D. Power factor is unity

D. Power factor is unity

4.  In a power system, reactive power is necessary for

A. Power transmission

B. Stabilising the voltage level

C. Counteracting the effect of reactance in the transmission system

D. None of the above

C. Counteracting the effect of reactance in the transmission system

5.  Skin effect occurs when a conductor carries current at..........frequencies

A. Very low

B. Low

C. Medium

D. High