Electromagnetic induction Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be 12 H 10 H 6 H 9 H 12 H 10 H 6 H 9 H 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 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 be 3 mH 12 mH 24 mH 48 mH 3 mH 12 mH 24 mH 48 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Lenz's law is a consequence of the law of conservation of Energy Induced current Induced e.m.f. Charge Energy Induced current Induced e.m.f. Charge ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Find the force acting on a conductor 3m long carrying a current of 50 amperes at right angles to a magnetic field having a flux density of 0.67 tesla 400 N 1000 N 100 N 300 N 400 N 1000 N 100 N 300 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A crack in the magnetic path of an inductor will result in Zero inductance Unchanged inductance Increased inductance Reduced inductance Zero inductance Unchanged inductance Increased inductance Reduced inductance ANSWER DOWNLOAD EXAMIANS APP
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