Two identical metallic spheres are given charges +q and -q respectively. Now

Two identical metal spheres having charges +q and +q respectively. When they are separated by distance r, exerts force of repulsion F on each other. The spheres are allowed to touch and then moved back to same separation. The new force of repulsion will be

Two identical metal spheres having charges +q and +q respectively. When they are separated by distance r, exerts force of repulsion F on each other. The spheres are allowed to touch and then moved back to same separation. The new force of repulsion will be

Two identical conducting spheres M and N has charge q_M and q_N respectively. A third identical neutral spehre P is brought in contact with M and then separated. Now, sphere P is brought in contact with N and then separated. Find out final charge on the spehre P.

Two small conductors A and B are given charges q_(1) and q_(2) respectively. Now they are placed inside a hollow metallic conductor C carrying a charge Q. If all the three conductors A, B and C are connected by a conducting wire as shown, the charges on A,B and C will be respectively :

Two small conductors A and B are given charges q_(1) and q_(2) respectively. Now they are placed inside a hollow metallic conductor C carrying a charge Q. If all the three conductors A, B and C are connected by a conducting wire as shown, the charges on A,B and C will be respectively :

Two small charged spheres contain charge +q_(1) and +q_(2) respectively. A charge dq is removed from sphere carrying charge q_(1) and is transferred to the other. Find charge on each sphere for maximum electric force between them.

Two identical metal plates are given poistive charges Q_1 and Q_2 (ltQ_1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potencial difference between them is