When radio-frequency current tends to flow at the surface of a conductor at very high frequencies, with little current in the solid core at the center is referred to as
A) coax current
B) eddy current
C) rf effect
D) skin effect

Question

Quizplus · Accepted Answer

This phenomenon is known as the skin effect. It occurs because the electromagnetic fields generated by the high frequency current repel the current towards the outer edges of the conductor, causing the current density to be highest near the surface and decreasing with greater depths into the conductor.

When Radio-Frequency Current Tends to Flow at the Surface of a Conductor