Question

Why does electric current produce a magnetic field?

Answer 1

The magnetic field produced by an electric field:

1. It is understood that the magnetic force is produced by the charged particle owing to their motion. But if the charge is at rest, it means there is no magnetic field.
2. The electric current produces the magnetic field because it also has the motion due to the movement of electrons from a negative to a positive end.
3. The direction of the magnetic field is determined by the direction of the movement of electrons.
4. The spinning and circling of an atom's nucleus cause the electric field to be in motion so this also produces the magnetic field. But in all events, the fields are generated only due to the movement of the charge.

Therefore, magnetic fields are produced by an electric field.