Question

Two identical circular coils are placed near each other, carrying current in the same direction. What will be the net magnetic field at the center of the coils?

Draw the pattern of magnetic field lines due to a magnetic field through and around a current carrying circular loop.

Name and state the rule to find out the direction of magnetic field inside and around the loop.

Assertion (A): The strength of the magnetic field produced at the centre of a current carrying circular coil increases on increasing the number of turns in it. Reason (R): The current in each circular turn has the same direction and the magnetic field due to each turn then just adds up.