Electromagnetic induction Which of the following circuit element stores energy in the electromagnetic field? Inductance Resistance Condenser Variable resistor Inductance Resistance Condenser Variable resistor ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as Self-inductance Capacitance Series aiding inductance Mutual inductance Self-inductance Capacitance Series aiding inductance Mutual inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it Cuts magnetic flux Moves parallel to the direction of the magnetic field Lies perpendicular to the magnetic flux Lies in a magnetic field Cuts magnetic flux Moves parallel to the direction of the magnetic field Lies perpendicular to the magnetic flux Lies in a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will Increases None of the listed here Remains same Decreases Increases None of the listed here Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage? 0.2 s 0.1 s None of the listed here 0.5 s 0.2 s 0.1 s None of the listed here 0.5 s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A laminated iron core has reduced eddy-current losses because The laminations are insulated from each other The magnetic flux is concentrated in the air gap of the core The laminations are stacked vertically More wire can be used with less D.C. resistance in coil The laminations are insulated from each other The magnetic flux is concentrated in the air gap of the core The laminations are stacked vertically More wire can be used with less D.C. resistance in coil ANSWER DOWNLOAD EXAMIANS APP
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