Question

Explain the concept of skin effect and skin depth.

Answer 1

The electric current flows mainly at the "skin" of the conductor, between the outer surface and a level called the skin depth. The skin effect causes the effective resistance of the conductor to increase at higher frequencies where the skin depth is smaller, thus reducing the effective cross-section of the conductor.

Answer 2

Answer:

Explanation: Increased effective resistance but reduced effective internal reactance of the conductor