AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over The quarter cycle The whole cycle The half cycle Unsymmetrical part of the wave form The quarter cycle The whole cycle The half cycle Unsymmetrical part of the wave form ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the following circuit will be unity Resistance Inductance None of the listed here Capacitance Resistance Inductance None of the listed here Capacitance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The product of apparent power and cosine of the phase angle between circuit voltage and current is Reactive power Volt-amperes Instantaneous power True power Reactive power Volt-amperes Instantaneous power True power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? 84.84 sin 25 t 42.42 sin 314 t 30 sin 50 t 60 sin 25 t 84.84 sin 25 t 42.42 sin 314 t 30 sin 50 t 60 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit Consumes some power on average None of the listed here Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Does not take power at all from a line Consumes some power on average None of the listed here Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Does not take power at all from a line 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
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