- #1
k9b4
- 109
- 2
I have read this wikipedia article, but I still don't understand: http://en.wikipedia.org/wiki/Near_and_far_field
Why can EM radiation only be transverse waves? Why can't it travel as a longitudinal wave?
If I have two charges in a vacuum, with the straight line between them called 'x direction', and I oscillate one of the charges in the x direction, the other charge will be caused to oscillate in the x direction.
Why is this situation not called EM radiation?
Why can EM radiation only be transverse waves? Why can't it travel as a longitudinal wave?
If I have two charges in a vacuum, with the straight line between them called 'x direction', and I oscillate one of the charges in the x direction, the other charge will be caused to oscillate in the x direction.
Why is this situation not called EM radiation?