AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? None of the listed here VC and VL VL and VR VC and VR None of the listed here VC and VL VL and VR VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In an AC. circuit, a low value of kVAR compared with kW indicates Unity power factor Maximum load current Low efficiency High power factor Unity power factor Maximum load current Low efficiency High power factor ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is A sinusoid of the same frequency None of the listed here A sinusoid of half the original frequency A sinusoid of double the frequency A sinusoid of the same frequency None of the listed here A sinusoid of half the original frequency A sinusoid of double the frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? 30 sin 50 t 42.42 sin 314 t 84.84 sin 25 t 60 sin 25 t 30 sin 50 t 42.42 sin 314 t 84.84 sin 25 t 60 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is 8 kVAR 16 kVAR 12 kVAR 10 kVAR 8 kVAR 16 kVAR 12 kVAR 10 kVAR ANSWER DOWNLOAD EXAMIANS APP
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