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What are eddy currents ? Mention two app...

What are eddy currents ? Mention two applications of eddy currents.

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Eddy currents are induced currents in bulk pieces of conductors when they are subjected to changing magnetic flux.
Uses :
1. Magnetic braking trains
2. Induction furnace
3. Magnetic damping in galvanometers.
4. Electric power meters. [Any one]
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