Explore BrainMass

Poynting Vector on the surface of current carrying conductor

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

A straight conducting wire of circular cross section, radius a, has a resistance R per unit length and carries a constant current I. Find the value and direction of the Poynting vector at the surface of the wire, and hence show that the total power entering the wire per unit length is (I^2)R. By considering the divergence of the poynting vector inside the wire, show that the energy is dissipated uniformly through it's volume.

© BrainMass Inc. brainmass.com December 20, 2018, 12:58 am ad1c9bdddf

Solution Summary

Step by step solution provided.