Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Laminated iron core Iron core Air core Powdered iron core Laminated iron core Iron core Air core Powdered iron core 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 1.0 2.5 2.0 0.5 1.0 2.5 2.0 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 24 mH 12 mH 48 mH 6 mH 24 mH 12 mH 48 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The magnitude of the induced e.m.f. in a conductor depends on the 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 Amount of flux cut ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will Increases Decreases Remains same None of the listed here Increases Decreases Remains same None of the listed here 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 Self-inductance of two coils only Mutual inductance between two coils only Mutual inductance and self inductance of two coils None of the listed here Self-inductance of two coils only Mutual inductance between two coils only ANSWER DOWNLOAD EXAMIANS APP
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