Electromagnetic induction Air-core coils are practically free from None of the listed here Both Hysteresis losses & Eddy current losses Hysteresis losses Eddy current losses None of the listed here Both Hysteresis losses & Eddy current losses Hysteresis losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is 15 H 5 H 10 H 20 H 15 H 5 H 10 H 20 H 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 None of the listed here Mutual inductance between two coils only Self-inductance of two coils only Mutual inductance and self inductance of two coils None of the listed here Mutual inductance between two coils only Self-inductance of two coils 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 6 mH 12 mH 24 mH 48 mH 6 mH 12 mH 24 mH 48 mH ANSWER DOWNLOAD EXAMIANS APP
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 9 H 6 H 12 H 10 H 9 H 6 H 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 25 V 15 V 12 V 10 V 25 V 15 V 12 V 10 V ANSWER DOWNLOAD EXAMIANS APP
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