Answer to Question #153815 in Electricity and Magnetism for Max

Question

The velocity of electromagnetic wave in a good conductor is

A.3 x 10⁸ m/sB.more than 3 x 10⁸ m/sC.very lowD.high

Answer 1

Q)The velocity of an electromagnetic wave in a good conductor is

Answer:(c)very low

Explanation:

At V=3.2 m/s.

As a consequence of Snell's Law and the extremely low speed, electromagnetic waves always enter good conductors in a direction that is normal to the surface,

So,

In good conductor $V_p<<C$

Hence, the wave slows down,

i.e. velocity is very low.