Question

A coil A is connected to a voltmeter V and the other coil B to an alternating current source D of a large copper sheet C is placed the two coils how the the induced emf in the coil A change due to the current in the coil B

Answer 1

Answer:

The induced emf in the coil A will decreases.

Explanation:

• According to the principle, the flux changes in the coil B will change the flux in coil A.
• An emf is induced in the coil A.
• When a large copper sheet C is placed between the two coils, an eddy current will produced into the copper sheet.
• The flux rate in coil A will be decreased.
• So, an emf is induced in the coil A will also be decreased due to proportionality condition with rate of change of flux.

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