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, 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 None of the listed here Both resistance and inductance carry equal currents The current through the resistance is less ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 50 Hz 30 Hz 20 Hz 40 Hz 50 Hz 30 Hz 20 Hz 40 Hz 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 80 kW 32 kW 40 kW 36 kW 80 kW 32 kW 40 kW 36 kW ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VL and VR VC and VR VC and VL None of these VL and VR VC and VR VC and VL None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 5 15 10 25 5 15 10 25 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of a series R-C circuit is given by R2C R/C RC RC2 R2C R/C RC RC2 ANSWER DOWNLOAD EXAMIANS APP
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