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 Unity power factor Low efficiency High power factor Maximum load current Unity power factor Low efficiency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 2.5 15 10 5 2.5 15 10 5 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The double energy transient occur in the Purely inductive circuit R-L-C circuit R-L circuit R-C circuit Purely inductive circuit R-L-C circuit R-L circuit R-C circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance affects the direct current flow At all the time of operation Only at the time of turning off Only at the time of turning on At the time of turning on and off At all the time of operation Only at the time of turning off Only at the time of turning on At the time of turning on and off ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will Be reduced by half Be four times as high Be reduced to one fourth Be doubled Be reduced by half Be four times as high Be reduced to one fourth Be doubled ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be 111 V 282.8 V 100 V 141.4 V 111 V 282.8 V 100 V 141.4 V ANSWER DOWNLOAD EXAMIANS APP
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