AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to Cosine of phase angle difference between current and voltage all of these R/Z Ratio of useful current to total current Iw/I Cosine of phase angle difference between current and voltage all of these R/Z Ratio of useful current to total current Iw/I 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 same frequency Both waves must have zero value at the same time None of the listed here Both waves must have identical peak values Both waves must have same frequency Both waves must have zero value at the same time None of the listed here Both waves must have identical peak values ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory All the rules and laws of D.C. circuit also apply to A.C. circuit containing Capacitance only Inductance only Resistance only All above Capacitance only Inductance only Resistance only All above ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The equation of 50 Hz current sine wave having r.m.s. value of 60 A is 84.84 sin 3141 42.42 sin 314 t 60 sin 50 t 60 sin 25 t 84.84 sin 3141 42.42 sin 314 t 60 sin 50 t 60 sin 25 t 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 these Both waves must have zero value at the same time Both waves must have same frequency Both waves must have identical peak values None of these Both waves must have zero value at the same time Both waves must have same frequency Both waves must have identical peak values 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° 180° 30° 90° 60° 180° 30° 90° ANSWER DOWNLOAD EXAMIANS APP
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