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When a piece of iron is placed in a changing magnetic field it gets heated due to flow of.
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When a piece of iron is placed in a changing magnetic field it gets heated due to flow of.

User Coincoin
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These currents are called eddy currents because the direction of these currents are like those of eddies. Eddy currents are undesirable since they heat up the core and cause unnecessary dissipation of power.
User Tatigo
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