Electromagnetic induction Air-core coils are practically free from Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses Eddy current losses 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 9 H 6 H 10 H 12 H 9 H 6 H 10 H 12 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The direction of induced e.m.f. can be found by Lenz's law Fleming's right hand rule Laplace's law Kirchhoff s voltage law Lenz's law Fleming's right hand rule Laplace's law Kirchhoff s voltage law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Air core Powdered iron core Iron core Laminated iron core Air core Powdered iron core Iron core Laminated iron core 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 48 mH 3 mH 24 mH 12 mH 48 mH 3 mH 24 mH 12 mH 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 15 V 25 V 12 V 10 V 15 V 25 V 12 V 10 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS