Introduction to Electrodynamics · Problem 7.30

Electrodynamics — David J. Griffiths

Physics · self-inductance-cable-surface-return

Problem

A long cable carries current in one direction uniformly distributed over its (circular) cross section. The current returns along the surface (there is a very thin insulating sheath separating the currents). Find the self-inductance per unit length.

Related theory

Browse the problem library