AC Fundamentals, Circuit and Circuit Theory The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is 32 kW 80 kW 40 kW 36 kW 32 kW 80 kW 40 kW 36 kW ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value? 180° 30° 90° 45° 180° 30° 90° 45° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Ohm is unit of all of the following except Capacitive reactance Inductive reactance Resistance Capacitance Capacitive reactance Inductive reactance Resistance Capacitance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of the capacitance circuit is defined as the time during which voltage None of these Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value None of these Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series L-C circuit at the resonant frequency the Current is minimum Current is maximum Impedance is maximum Voltage across C is minimum Current is minimum Current is maximum Impedance is maximum Voltage across C is minimum ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Magnitude of current at resonance in R-L-C circuit Depends upon the magnitude of L Depends upon the magnitude of R Depends upon the magnitude of R, Land C Depends upon the magnitude of C Depends upon the magnitude of L Depends upon the magnitude of R Depends upon the magnitude of R, Land C Depends upon the magnitude of C ANSWER DOWNLOAD EXAMIANS APP
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