Question

An electromagnetic wave is traveling in a vacuum. The magnitudes of the electric and magnetic fields of the wave are _____________

Answer 1

Proportional

Step-by-step explanation:

When an electromagnetic wave is traveling in a vacuum, the magnitudes of the electric and magnetic fields are related as follows :

`E=cB`

E is electric field

c is speed of light

B is magnetic field

It is clear that the magnitudes of the electric and magnetic fields of the wave are proportional to each other.