(a) Derive the equation of continuity $\nabla \cdot \vec{J} + \frac{\…
Previous year question for Applied Engineering Physics.
Question
(a) Derive the equation of continuity $\nabla \cdot \vec{J} + \frac{\partial P}{\partial t} = 0$. How does it lead to the concept of displacement current ? Explain its significance in Maxwell's equations of electromagentism. Show that it has dimensions of conventional current. 12
(b) An electromagnetic wave propagates through a medium having relative permittivity 4 and relative permeability 1. Find the velocity of the wave. 8
- Year: 2018
- Subject: Applied Engineering Physics