AC Fundamentals, Circuit and Circuit Theory In a pure resistive circuit Current lags behind the voltage by 90° Current can lead or lag the voltage by 90° None of the listed here Current is in phase with the voltage Current lags behind the voltage by 90° Current can lead or lag the voltage by 90° None of the listed here Current is in phase with the voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power consumed in a circuit element will be least when the phase difference between the current and voltage is 60° 90° 180° 30° 60° 90° 180° 30° 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? 220 V 220/v3 V 220 v3 V None of these 220 V 220/v3 V 220 v3 V None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value Will change the impedance at resonance frequency Will increase the selectivity of the circuit Will change the resonance frequency Will change the maximum value of current at resonance Will change the impedance at resonance frequency Will increase the selectivity of the circuit Will change the resonance frequency Will change the maximum value of current at resonance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A sine wave has a frequency of 50 Hz. Its angular frequency is __________ radian/second. 50 jt 5 n 100 n 25 JT 50 jt 5 n 100 n 25 JT ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the following circuit will be unity None of the listed here Inductance Resistance Capacitance None of the listed here Inductance Resistance Capacitance ANSWER DOWNLOAD EXAMIANS APP
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