There is `10` units of charge at the centre of a circle of radius `10 m`. The work done in moving `1` unit of charge around the circle once is

A charge of +1C is placed at the centre of a spherical shell of radius 10cm. What will be the work done in moving a charge of +1 muC on its surface through a distance of 5 cm?

The work done in maving a unit n- pole round a conductor carrying current in a circle of radius 10cm is w . The work done in moving it in a circle of radius 20cm is

A 500 mu C charge is at the centre of a square of side 10 cm. Find the work done in moving a charge of 10 mu C between two diagonally opposite points on the square.

A charge +Q is lying at the center of a circle. What is work done in carrying charge q from A to B, where A and B, both lie on the circle.

A cell drives a current through a circuit. The emf of the cell of equal to the work done in moving unit charge (Choose the incorrect option)

Two identicaln thin rings each of radius 10 cm carrying charges 10 C and 5 C are coaxially placed at a distance 10 cm apart. The work done in moving a charge q from the centre of the first ring to that of the second is

Assertion(A): A circle is drawn with a point positive charge (+q) at its centre.The work done in talking a unit positive charge once around it is zero Reason (R ) :Displacement of unit positive charge is zero.