- #1
hokhani
- 487
- 8
When we have a current in a long wire, what is the kind of total energy of the system? We do have an electric field inside the wire and a magnetic field outside it. I think the electric field has an energy, say E, and it is only this energy which appears also as magnetic energy and we don't have to take the sum of electric energy and magnetic energy as the total energy. Am I right?! Could anyone help me please?