AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to 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 all of these Ratio of useful current to total current Iw/I ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 200 V 282.8 V 127.4 V 141.4 V 200 V 282.8 V 127.4 V 141.4 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a R-L-C circuit All of the listed here Exchange of power takes place between capacitor and supply line Exchange of power takes place between inductor and supply line Power is consumed in resistance and is equal to IR All of the listed here Exchange of power takes place between capacitor and supply line Exchange of power takes place between inductor and supply line Power is consumed in resistance and is equal to IR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In an AC. circuit, a low value of kVAR compared with kW indicates High power factor Low efficiency Unity power factor Maximum load current High power factor Low efficiency Unity power factor Maximum load current 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 The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that Both waves must have zero value at the same time Both waves must have same frequency None of these Both waves must have identical peak values Both waves must have zero value at the same time Both waves must have same frequency None of these Both waves must have identical peak values ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS