You are facing a circular wire carrying an electric current. The current is clockwise as seen by you. Is the field at the centre coming towards you or going away from you?

A solenoid with N loops of wire tightly wrapped around an iron-core is carrying an electric current I. If the current through this solenoid is reduced to half, then what change would you expect in inductance L of the solenoid.

In a current carrying solenoid, current is flowing clockwise from left end. Draw the magnetic field produced in it.

A very long bar magnet is placed with its north pole coinciding with the centre of a circular loop carrying an electric current. i . The magnetic field due to the magnet at a point on the periphery of the wire is B . The radius of the loop is a . The force on the wire is

The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of the circular wire is :

Which effects of electric current do you find ?