A bar magnet produces a field which is similaar to a field produced by current flowing through

A magnetic field is produced by

How is a magnetic field produced?

The fiels produced by a bar magnet is similar to the field produced by a current carrying

Derive an expression for the magnetic field produced by a current flowing through a circular arc of the wire.

A magnetic field can be produced by

A magnetic field can be produced by

A magnetic field can be produced by