ELECTROSTATIC POTENTIAL AND CAPACITANCE Set 1

Two equally charged small balls placed at a fixed distance experience a force F. A similar uncharged ball after touching one of them is placed at the middle point between the two balls. The force experienced by this ball is

An electric field is given by. The work done in moving a 1 C charge from A =m to B =m is

Two point changes and are held fixed at and respectively of a coordinate system, then

Two capacitors each of capacity 2F are connected in parallel. If they are connected to 100 V battery ,then energy stored in them is

4 point charges each +q is placed on the circumference of a circle of diameter in such a way that they form a square. The potential at the centre is

A parallel plate capacitor is made by stocking equally spaced plates connected alternately. If the capacitance between any two plates is , then the total capacitance is,

Two plates are 20 cm apart and the potential difference between them is 10 V. The electric field between the plates is

A charged body has an electric flux associated with it the body is now placed inside a metallic container. The electric flux associated with the container will be

The capacitance of a spherical condenser is 1 F. If the spacing between two spheres is 1 mm, the radius of the outer sphere is

A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be