Question

If the magnitude of the electric field of an electromagnetic wave is 3x10^3 V/m, what is the the magntude of the magnetic field?

a. 1.1 x 10^-12 T
b. 9 x 10^11 T
c. 10^5 T
d. 10^-5 T
e. 3 x 10^3 T

Answer 1

The value of the magnetic field is
`B = 1.0*10^(-5) \ T`

The correct option is d

Step-by-step explanation:

From the question we are told that

The magnitude of the electric field is
`E = 3*10^(3) \ V/m`

Generally the magnitude of the magnetic field is mathematically represented as

`B = (E)/(c)`

Here c is the speed of light
`c = 3.0*10^(8) \ m/s`

=>
`B = (E)/(c)`

=>
`B = (3.0*10^(3))/( 3.0*10^(8))`

=>
`B = 1.0*10^(-5) \ T`