Electromagnetic induction The coefficient of coupling between two air core coils depends on 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 Mutual inductance and self inductance of two coils 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 4 A/s 20 A/s 16 A/s 12 A/s 4 A/s 20 A/s 16 A/s 12 A/s ANSWER DOWNLOAD EXAMIANS APP
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 2 wb 20 wb 0.02 wb 0.2 wb 2 wb 20 wb ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following is unit of inductance? Hennry Ohm Weber/metre Ampere turns Hennry Ohm Weber/metre Ampere turns ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Higher the self-inductance of a coil, Greater the flux produced by it Longer the delay in establishing steady current through it Lower the e.m.f. induced Lesser its weber-turns Greater the flux produced by it Longer the delay in establishing steady current through it Lower the e.m.f. induced Lesser its weber-turns 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 12 mH 3 mH 24 mH 28 mH 12 mH 3 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
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