Core losses in an inductor for DC voltage applied across windings?

An inductor is formed by winding a coil on a limb of a ferromagnetic core. What would the core losses be in a coil-core assembly excited by a DC current? Explain why.

Answer:

Core losses are a function of frequency raised to about 1.8. There is no core loss at DC.

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Core losses in an inductor for DC voltage applied across windings?

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