AC Fundamentals, Circuit and Circuit Theory In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. value of 220 V is induced. Which of the following values is indicated by the voltmeters? 220/v3 V 220 v3 V None of these 220 V 220/v3 V 220 v3 V None of these 220 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a purely inductive circuit Actual power is zero None of the listed here Reactive power is zero Apparent power is zero Actual power is zero None of the listed here Reactive power is zero Apparent power is zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of a series R-C circuit is given by R2C RC RC2 R/C R2C RC RC2 R/C ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series L-C circuit at the resonant frequency the Voltage across C is minimum Current is maximum Current is minimum Impedance is maximum Voltage across C is minimum Current is maximum Current is minimum Impedance is maximum ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be 111 V 282.8 V 141.4 V 100 V 111 V 282.8 V 141.4 V 100 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory At __________ frequencies the parallel R-L circuit behaves as purely resistive. High Very high Very low Low High Very high Very low Low ANSWER DOWNLOAD EXAMIANS APP
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