Amateur Extra › E3 Radio Wave Propagation › E3A05
E3A05
How are the component fields of an electromagnetic wave oriented?
Pick an answer to check it.
Answer: C. They are at right angles
The electric and magnetic fields of an electromagnetic wave are at right angles (perpendicular) to each other. They are in phase in time, so 90 degrees out of phase is wrong.
Tip: E and H fields cross at 90 degrees.