eddy currents

Question

Eddy currents are induced circulating currents leading to:

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When a solid conductor is placed in a changing magnetic field, circulating loops of current are induced throughout the bulk material.
- These are **Eddy Currents**.
- Because conductors have resistance, these currents dissipate energy as heat ($I^2 R$ loss).
- To minimize this in transformers and motors, iron cores are **laminated** (divided into thin sheets insulated from each other) to break up the current paths.

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