(a) Obtain the wave equations for an electromagnetic wave in free spa…
Previous year question for Applied Engineering Physics.
Question
(a) Obtain the wave equations for an electromagnetic wave in free space. Prove that the velocity of em wave in a medium of magnetic permeability $\mu$ and electric permittivity $\varepsilon$ and conductivity $\sigma = 0$ is given by : $c = \frac{1}{\sqrt{\mu\varepsilon}}$
(b) Define Poynting vector. What does it measures? Illustrate.
- Year: 2014
- Subject: Applied Engineering Physics