What problem do eddy currents cause in a solid iron transformer core?
Answer
They lead to energy loss through heat
Eddy currents are circular electrical currents induced within a solid conductive material by a changing magnetic field. In a transformer, if the iron core is a solid piece of metal, these internal currents circulate and dissipate energy as heat. This energy loss reduces the overall efficiency of the transformer, which is why thin, insulated laminated sheets are used to break up the current paths.
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Faraday's first transformer - IGCSE Physics - YouTube
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