AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to 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 Cosine of phase angle difference between current and voltage all of these R/Z ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In an A.C. circuit power is dissipated in Resistance only None of the listed here Inductance only Capacitance only Resistance only None of the listed here Inductance only Capacitance only 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 Instantaneous power Reactive power True power Volt-amperes Instantaneous power Reactive power True power Volt-amperes ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value which of the following wave will 'have the highest r.m.s. value? Sine wave Half wave rectified sine wave Square wave Triangular wave Sine wave Half wave rectified sine wave Square wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces The more heat than produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit None of these The same heat as produced by A.C. when flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit None of these The same heat as produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with the increase of inductance and the increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with the increase of inductance and the increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance ANSWER DOWNLOAD EXAMIANS APP
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