Question

How are current and magnetic field related?

Answer 1

The magnetic field associated with a current:

1. A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.
2. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.
3. The magnetic field strength is directly proportional to the current flowing in the circuit.
4. The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow.