AC Fundamentals, Circuit and Circuit Theory The r.m.s. value and mean value is the same in the case of Square wave Half wave rectified sine wave Sine wave Triangular wave Square wave Half wave rectified sine wave Sine wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of Capacitive effect between adjacent coil turns Iron loss in core Increase in temperature Skin effect Capacitive effect between adjacent coil turns Iron loss in core Increase in temperature Skin effect 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 141.4 V 111 V 282.8 V 100 V 141.4 V 111 V 282.8 V 100 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an inductive circuit is usually improved by connecting capacitor to it in Series Parallel None of the listed here Both parallel and series Series Parallel None of the listed here Both parallel and series 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 Low efficiency Unity power factor Maximum load current High power factor Low efficiency Unity power factor Maximum load current ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series L-C circuit at the resonant frequency the Voltage across C is minimum Current is maximum Impedance is maximum Current is minimum Voltage across C is minimum Current is maximum Impedance is maximum Current is minimum ANSWER DOWNLOAD EXAMIANS APP