Question

What is eddy currents state merit and demrit and also state method to reduce effect of eddy current

Answer 1

Eddy currents (also called Foucault currents) are loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction. ... This effect is employed in eddy current brakes which are used to stop rotating power tools quickly when they are turned off.

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Answer 2

Explanation:

Eddy currents are current loops formed over conductor surfaces due to changing magnetic flux. They are useful in induction heating, levitating, electromagnetic damping, and electromagnetic braking. They can be minimized by adding slots in the conductor surface & laminating.