Electromagnetic Waves

1. Oct 5, 2008

Gear300

For an electromagnetic wave, why is the electric field in phase with the magnetic field? As one increases in a given positive direction, so does the other (also in a given positive direction). I was somewhat expecting them to be slightly out of phase for some reason.

If its not too much to ask...can anyone provide a post showing the mathematics for deriving electromagnetic wave phenomenon from Maxwell's equations...sort of looking for them

2. Oct 5, 2008

granpa

who says they are in phase?

3. Oct 5, 2008

Gear300

I see...so they are not necessarily in phase...could you clarify (or provide the math)?

Last edited: Oct 5, 2008
4. Oct 5, 2008

Staff: Mentor

Last edited: Oct 5, 2008