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 Remains same Increases Decreases None of the listed here Remains same Increases Decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is 10 H 5 H 15 H 20 H 10 H 5 H 15 H 20 H 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 Amount of flux linkages Rate of change of flux-linkages Amount of flux cut Flux density of the magnetic field Amount of flux linkages Rate of change of flux-linkages Amount of flux cut ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Powdered iron core Laminated iron core Air core Iron core Powdered iron core Laminated iron core Air core Iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An open coil has Infinite resistance and zero inductance Zero resistance and inductance Infinite resistance and normal inductance Zero resistance and high inductance Infinite resistance and zero inductance Zero resistance and inductance Infinite resistance and normal inductance Zero resistance and high inductance 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 48 mH 12 mH 24 mH 3 mH 48 mH 12 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
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