Electromagnetic induction The direction of induced e.m.f. can be found by Fleming's right hand rule Lenz's law Laplace's law Kirchhoff s voltage law Fleming's right hand rule Lenz's law Laplace's law Kirchhoff s voltage law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Higher the self-inductance of a coil, 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 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 be 3 mH 12 mH 48 mH 24 mH 3 mH 12 mH 48 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be 0.5 2.5 2.0 1.0 0.5 2.5 2.0 1.0 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following circuit element stores energy in the electromagnetic field? Condenser Variable resistor Inductance Resistance Condenser Variable resistor Inductance Resistance 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 Quadrupled Halved Unaffected Doubled Quadrupled Halved Unaffected Doubled ANSWER DOWNLOAD EXAMIANS APP
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