Question

In an electromagnetic wave, the electric and magnetizing field are `100V//m` and `0.265 A//m`. The maximum energy flow is:
A. `79W//m^2`
B. `13.2W//m^2`
C. `53W//m^2`
D. `26.5 W//m^2`

Answer 1

Correct Answer - d
Here, `E_0=100V//m , H_0=0.265A//m`
As maximum energy flow persecond per unit area
in e.m. wave will be
`(E_0B_0)/(mu_0)=E_0H_0= (100)(0.265)=26.5 W//m^2`.