- #1
DoobleD
- 259
- 20
This is probably fairly simple, but I have a hard time to grasp the concept of the vector potential A in electromgnetism. Especially, in the following equation for the electric field :
[tex]\vec{E} = - \nabla V - \frac{\partial \vec{A}}{\partial t}[/tex]
When does the second term is not 0 ?
[tex]\vec{E} = - \nabla V - \frac{\partial \vec{A}}{\partial t}[/tex]
When does the second term is not 0 ?