Answer:
At the right angle to each other.
Explanation:
The magnetic and electrical components of electromagnetic waves are travel in relation of the right angle to each other. When the electric and magnetic component oscillates at the right angle to each other than an electromagnetic waves is propagated.
In an electromagnetic wave, the electric field and magnetic field are perpendicular to each other. A magnetic field induces movement of electric charge, produces electric current. Electromagnetic waves are not only travels in air and solid materials but it is also travels in vaccum medium.