Electromagnetic induction Lenz's law is a consequence of the law of conservation of Induced e.m.f. Charge Induced current Energy Induced e.m.f. Charge Induced current Energy ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly 120 N 90 N 30 N 60 N 120 N 90 N 30 N 60 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will 24 mH 28 mH 12 mH 3 mH 24 mH 28 mH 12 mH 3 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which circuit element(s) will oppose the change in circuit current? Inductance only Capacitance only Inductance and capacitance Resistance only Inductance only Capacitance only Inductance and capacitance Resistance only ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be 24 mH 6 mH 48 mH 12 mH 24 mH 6 mH 48 mH 12 mH 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 Mutual inductance Series aiding inductance Self-inductance Capacitance Mutual inductance Series aiding inductance ANSWER DOWNLOAD EXAMIANS APP
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