At some instant and location, the electric field associated with an electromagnetic wave in vacuum has the strength 90.5 90.5 V/m. Find the magnetic field strength, the energy density, and the power flow per unit area, all at the same instant and location.

Answer with Explanation:

We are given that

Electric field,E=90.5V/m

We have to find the magnetic field strength,the energy density and the power flower per unit area.

Magnetic field strength=

Where

Using the formula

Energy per unit volume,

Where

Using the formula

Power flow per unit area=

Where

a and b sometimes have a positive value