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The Skin Effect

The Skin Effect. Section 60. Long thin straight wire with AC current. Wire with circular cross section. Outside wire, low-frequency quasistatic case: Ignore time derivatives of EM fields outside conductors. What happens to an AC current in a wire as the frequency is increased?.

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The Skin Effect

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  1. The Skin Effect Section 60

  2. Long thin straight wire with AC current

  3. Wire with circular cross section

  4. Outside wire, low-frequency quasistatic case: Ignore time derivatives of EM fields outside conductors.

  5. What happens to an AC current in a wire as the frequency is increased? • The current becomes concentrated at the center. • The current becomes concentrated on the surface. • The current oscillates between center and surface

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