AC Fundamentals, Circuit and Circuit Theory Inductance of coil Decreases with the increase in supply frequency Is unaffected by the supply frequency Increases with the increase in supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Is unaffected by the supply frequency Increases with the increase in supply frequency Becomes zero with the increase in supply frequency 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 V 220 v3 V 220/v3 V None of these 220 V 220 v3 V 220/v3 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms, None of the listed here Both resistance and inductance carry equal currents The current through the resistance is less The current through the resistance is more None of the listed here Both resistance and inductance carry equal currents The current through the resistance is less The current through the resistance is more ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these Ratio of useful current to total current Iw/I R/Z Cosine of phase angle difference between current and voltage all of these Ratio of useful current to total current Iw/I R/Z Cosine of phase angle difference between current and voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is 32 kW 40 kW 36 kW 80 kW 32 kW 40 kW 36 kW 80 kW ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a parallel R-C circuit, the current always _________the applied voltage. Remains in phase with Lags None of the listed here Leads Remains in phase with Lags None of the listed here Leads ANSWER DOWNLOAD EXAMIANS APP
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