Question

An electromagnetic wave in vacuum has an electric field amplitude of 470 V/m. Calculate the amplitude of the corresponding magnetic field.

Answer 1

Magnetic field, B =
`B=1.56* 10^(-6)\ T`

Step-by-step explanation:

It is given that,

The amplitude of an electromagnetic wave, E = 470 V/m

We need to find the amplitude of the corresponding magnetic field. The relation between electric and magnetic field is :

`B=(E)/(c)`

Where

c is the speed of light

`B=(470\ V/m)/(3* 10^8\ m/s)`

B = 0.00000156

`B=1.56* 10^(-6)\ T`

So, the amplitude of the corresponding magnetic field is
`1.56* 10^(-6)\ T`. Hence, this is the required solution.