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← ScienceWhich mechanism causes increased eddy current heating in transformer cores?
A)Increased domain wall pinning
B)Reduced magnetic path length
C)Elevated operating frequency✓
D)Enhanced core saturation flux
💡 Explanation
Elevated operating frequency increases the rate of magnetic flux change, inducing stronger circulating currents through Faraday's law of induction; therefore eddy current heating increases because higher frequency causes higher induced voltages, rather than domain wall pinning.
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