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 Increase in temperature Capacitive effect between adjacent coil turns Iron loss in core Skin effect Increase in temperature Capacitive effect between adjacent coil turns Iron loss in core Skin effect ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with increase of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with increase of inductance and decrease of resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In any A.C. circuit always Reactive power is more than apparent power Actual power is more than reactive power Reactive power is more than actual power Apparent power is more than actual power Reactive power is more than apparent power Actual power is more than reactive power Reactive power is more than actual power Apparent power is more than actual power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The safest value of current the human body can carry for more than 3 second is 4 mA 15 mA 5 mA 9 mA 4 mA 15 mA 5 mA 9 mA ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VL and VR None of the listed here VC and VL VC and VR VL and VR None of the listed here VC and VL VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to The statement given is false The reactance of the inductor The current flowing in the inductor The big size of the inductor The statement given is false The reactance of the inductor The current flowing in the inductor The big size of the inductor ANSWER DOWNLOAD EXAMIANS APP
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