Skin effect depends on

Electrical Engineering XYZ MCQs

Skin effect depends on:

  1. Relative permeability
  2. Frequency
  3. Conductivity
  4. All of the above

Correct answer: 4. All of the above

Explanation: Skin effect is a phenomenon that occurs in conductors carrying alternating current (AC). It describes the tendency of alternating current to flow predominantly near the outer surface of the conductor, rather than evenly distributing itself throughout the entire cross-section of the conductor. This phenomenon becomes more significant at higher frequencies.

Skin effect is heavily dependent on frequency. At higher frequencies, the skin depth (the depth at which the current density is reduced to a certain fraction of its value at the surface) decreases, causing the current to be concentrated more towards the surface of the conductor.

While skin effect primarily depends on frequency, it is also linked with relative permittivity and conductivity. Henceforth all four options mentioned above are correct.

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