AC Fundamentals, Circuit and Circuit Theory In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of L only C only L or C R only L only C only L or C R only ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces The more heat than produced by A.C. when flowing through the same circuit None of these The less heat than produced by A.C. flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit None of these The less heat than produced by A.C. flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
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? None of these 220/v3 V 220 V 220 v3 V None of these 220/v3 V 220 V 220 v3 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that Both waves must have same frequency None of the listed here Both waves must have identical peak values Both waves must have zero value at the same time Both waves must have same frequency None of the listed here Both waves must have identical peak values Both waves must have zero value at the same time ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a parallel R-C circuit, the current always _________the applied voltage. Lags None of the listed here Remains in phase with Leads Lags None of the listed here Remains in phase with Leads ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of a series R-C circuit is given by RC RC2 R2C R/C RC RC2 R2C R/C ANSWER DOWNLOAD EXAMIANS APP
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