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 12 mH 6 mH 48 mH 24 mH 12 mH 6 mH 48 mH 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 28 mH 24 mH 3 mH 12 mH 28 mH 24 mH 3 mH 12 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The coefficient of coupling between two air core coils depends on Mutual inductance and self inductance of two coils Self-inductance of two coils only Mutual inductance between two coils only None of the listed here Mutual inductance and self inductance of two coils Self-inductance of two coils only Mutual inductance between two coils only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Lenz's law is a consequence of the law of conservation of Charge Induced current Energy Induced e.m.f. Charge Induced current Energy Induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be Unaffected Quadrupled Halved Doubled Unaffected Quadrupled Halved Doubled 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 16 A/s 20 A/s 4 A/s 12 A/s 16 A/s 20 A/s 4 A/s 12 A/s ANSWER DOWNLOAD EXAMIANS APP
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