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Model ID: 79

Skin Effect in Wire

This example demonstrates the skin effect in electromagnetic applications. During the flow of AC current, electrons tend to move along the surface of a conductor. The magnetic field induced by changes in the current’s amplitude and direction push the electrons towards the wire’s exterior. This tendency increases with frequency and conductor size.

The model is solved twice at a frequency of 50 Hz, once with a copper wire and once with an aluminum core leaving with a thin copper shell. The two wires are then compared.

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