AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Zero Greater than unity Unity Less than unity Zero Greater than unity Unity Less than unity 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 Voltage across C is minimum Impedance is maximum Current is minimum Current is maximum Voltage across C is minimum Impedance is maximum ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees. 90 30 60 45 90 30 60 45 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following coil will have large resonant frequency? A coil with low resistance A coil with large distributed capacitance A coil with low distributed capacitance A coil with large resistance A coil with low resistance A coil with large distributed capacitance A coil with low distributed capacitance A coil with large resistance 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 Maximum load current Low efficiency Unity power factor High power factor Maximum load current Low efficiency Unity power factor 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 180° 30° 60° 90° 180° 30° 60° 90° ANSWER DOWNLOAD EXAMIANS APP
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