Electromagnetic induction The magnitude of the induced e.m.f. in a conductor depends on the 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 Rate of change of flux-linkages Amount of flux linkages ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A crack in the magnetic path of an inductor will result in Reduced inductance Unchanged inductance Zero inductance Increased inductance Reduced inductance Unchanged inductance Zero inductance Increased inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it Lies in a magnetic field Moves parallel to the direction of the magnetic field Cuts magnetic flux Lies perpendicular to the magnetic flux Lies in a magnetic field Moves parallel to the direction of the magnetic field Cuts magnetic flux Lies perpendicular to the magnetic flux 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 12 mH 3 mH 24 mH 48 mH 12 mH 3 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Aid the applied voltage Produce current opposite to the increasing current Aid the increasing current Tend to decrease the amount of current Aid the applied voltage Produce current opposite to the increasing current Aid the increasing current Tend to decrease the amount of current ANSWER DOWNLOAD EXAMIANS APP
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