Electromagnetic induction The magnitude of the induced e.m.f. in a conductor depends on the Rate of change of flux-linkages Amount of flux linkages Amount of flux cut Flux density of the magnetic field Rate of change of flux-linkages Amount of flux linkages Amount of flux cut Flux density of the magnetic field 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 12 mH 3 mH 24 mH 28 mH 12 mH 3 mH 24 mH 28 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A crack in the magnetic path of an inductor will result in Zero inductance Reduced inductance Unchanged inductance Increased inductance Zero inductance Reduced inductance Unchanged inductance Increased inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The inductance of a coil will increase under all the following conditions except When the number of turns of the coil increase When permeability of the core increases When more length for the same number of turns is provided When more area for each turn is provided When the number of turns of the coil increase When permeability of the core increases When more length for the same number of turns is provided When more area for each turn is provided ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 1000 ohms 5000 ohms 100 ohms 500 ohms 1000 ohms 5000 ohms 100 ohms 500 ohms ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Higher the self-inductance of a coil, Lesser its weber-turns Greater the flux produced by it Lower the e.m.f. induced Longer the delay in establishing steady current through it Lesser its weber-turns Greater the flux produced by it Lower the e.m.f. induced Longer the delay in establishing steady current through it ANSWER DOWNLOAD EXAMIANS APP
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