Question

The electric field in a microwave traveling through air has amplitude 0.50 mV/m and frequency 30 GHz. Find the amplitude and frequency of the magnetic field.

Answer 1

As

For electromagnetic Wave

Relation between peak value of electric and peak value of magnetic field is given by

E₀/B₀=c

So

Amplitude of magnetic field=A=E₀/c=(0.5010^-3)/(310⁸)=1.67 10^{-12 T}

Frequency of magnetic field will remain same and=30 GHz