Question

why coulombs law not applied on moving charge

Answer 1

I think because with moving charges you have to consider the effects of magnetic fields created.

Answer 2

If wikipedia is an acceptable source to cite here... "When movement takes place, magnetic fields that alter the force on the two objects are produced."

http://en.wikipedia.org/wiki/Coulomb's_law#Electrostatic_approximation

Answer 3

The easiest way to understand this is that electricity is just the flow of electrons. If you've ever coiled up a wire and put electricity through it, you'll know that's how you create an electromagnet, which is precisely because the current induces a magnetic field around it as it moves.

Answer 4

also it starts radiating.

Answer 5

Coulomb's law has a 1/r^2 in which are is the distance between the two charges. If the charge is moving, then r is constantly changing.