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 None of these 220 V 220/v3 V 220 v3 V None of these 220 V 220/v3 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will Be doubled Be reduced to one fourth Be four times as high Be reduced by half Be doubled Be reduced to one fourth Be four times as high Be reduced by half ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The frequency of domestic power supply in India is 250 Hz 50 Hz 150 Hz 200 Hz 250 Hz 50 Hz 150 Hz 200 Hz ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to The current flowing in the inductor The reactance of the inductor The big size of the inductor The statement given is false The current flowing in the inductor The reactance of the inductor The big size of the inductor The statement given is false ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? Connecting them in parallel increases the total value Oppose sudden changes in voltage Can act as energy storage devices Can dissipate considerable amount of power Connecting them in parallel increases the total value Oppose sudden changes in voltage Can act as energy storage devices Can dissipate considerable amount of power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series L-C circuit at the resonant frequency the Current is maximum Voltage across C is minimum Current is minimum Impedance is maximum Current is maximum Voltage across C is minimum Current is minimum Impedance is maximum ANSWER DOWNLOAD EXAMIANS APP
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