Question

The max magnetic field strength of an electromagnetic field is 5 x 10^-6 T. Calculate the maximum electric field strength if the wave is travelling in a medium in which the speed of the wave is 0.75c.

Answer 1

Solution

Given data

max magnetic field strength of an electromagnetic field is

$B_{max}=5 \times 10^{-6} T$

Velocity

$v=0.75\times3 \times 10^{8} m/sec$

The maximum strength of electric field is given by

$E_{max}=B_{max}v$

Putting all values

$E_{max}=5 \times 10^{-6} \times0.75\times3 \times 10^{8}$

.so

$E_{max}=1125V/m$