AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 127.4 V 141.4 V 200 V 282.8 V 127.4 V 141.4 V 200 V 282.8 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with decrease of inductance and increase of resistance Increases with increase of inductance and decrease of resistance Increases with the decrease of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with decrease of inductance and increase of resistance Increases with increase of inductance and decrease of resistance Increases with the decrease of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit takes power from the A.C. line when Both applied voltage and current increase Both applied voltage and current decrease Applied voltage increases but current decreases Applied voltage decreases but current increases Both applied voltage and current increase Both applied voltage and current decrease Applied voltage increases but current decreases Applied voltage decreases but current increases 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. 10 15 25 5 10 15 25 5 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series L-C circuit at the resonant frequency the Current is minimum Impedance is maximum Voltage across C is minimum Current is maximum Current is minimum Impedance is maximum Voltage across C is minimum Current is maximum 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 None of the listed here Both waves must have same frequency Both waves must have identical peak values Both waves must have zero value at the same time None of the listed here Both waves must have same frequency Both waves must have identical peak values Both waves must have zero value at the same time ANSWER DOWNLOAD EXAMIANS APP
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