Electromagnetic induction An average voltage of 10 V is induced in a 250 turns solenoid as a result of a change in flux which occurs in 0.5 second. The total flux change is 0.02 wb 0.2 wb 20 wb 2 wb 0.02 wb 0.2 wb 20 wb 2 wb ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The law that the induced e.m.f. and current always oppose the cause producing them is due to Newton Coulomb Lenz Faraday Newton Coulomb Lenz Faraday ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be 12 A/s 20 A/s 16 A/s 4 A/s 12 A/s 20 A/s 16 A/s 4 A/s 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 Mutual inductance Self-inductance Capacitance Series aiding inductance Mutual inductance Self-inductance Capacitance Series aiding inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be 12 V 25 V 10 V 15 V 12 V 25 V 10 V 15 V ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Lenz's law is a consequence of the law of conservation of Induced current Induced e.m.f. Energy Charge Induced current Induced e.m.f. Energy Charge ANSWER DOWNLOAD EXAMIANS APP
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