What is the magnetic effect of current ? Describe the nature of the magnetic field related with the current in circular coil.

Explanation

When a current is passed through a conductor, magnetic field is produced around the conductor. It is called magnetic effect of current. The magnetic field is in the form of concentric circular magnetic lines of force for a linear conductor carrying current. The magnetic field is in the form of parallel straight lines at the centre and cocentric magnetic lines near the circular coil carrying current.