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Electromagnetic Induction

The inductance of a coil will increase under all the following conditions except______________?

Electromagnetic Induction /
The inductance of a coil will increase under all the following conditions except______________?

A. when more length for the same number of turns is provided
B. when the number of turns of the coil increase
C. when more area for each turn is provided
D. when permeability of the core increases

The inductance of a coil will increase under all the following conditions except______________? Read More »

Electromagnetic Induction

As per Faraday’s laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it_______________?

Electromagnetic Induction /
As per Faraday’s laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it_______________?

A. lies perpendicular to the magnetic flux
B. lies in a magnetic field
C. cuts magnetic flux
D. moves parallel to the direction of the magnetic field

As per Faraday’s laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it_______________? Read More »

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_____________?

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_____________?

A. increase
B. decrease
C. remain the same
D. initially increase and then decrease

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_____________? Read More »

Electromagnetic Induction