Electrostatics ...

Two large metal plates are placed parallel to each other. The inner surfaces of plates are charged by +σ and – σ (Coulomb/m²). The outer surfaces are neutral. The electric field is .... in the region between the plates and .... outside the plates.

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

A 500 µF capacitor is charged at a steady rate of 100 µC/ Second. The potential difference across the capacitor will be 10 V after an interval of

The capacity of a parallel plate capacitor increases with the

Two parallel plate of area A are separated by two different dielectrics as shown in figure. The net capacitance is

Can a metal be used as a medium for dielectric

The respective radii of the two spheres of a spherical condenser are 12 cm and 9 cm. The dielectric constant of the medium between them is 6. The capacity of the condenser will be

A capacitor of capacitance value 1 µF is charged to 30 V and the battery is then disconnected. If it is connected across a 2 µF capacitor, the energy lost by the system is

The energy stored in the capacitor as shown in the figure (a) is 4.5 × 10^–6 J. If the battery is replaced by another capacitor of 900 pF as shown in figure (b), then the total energy of system is

A capacitor of capacity C has charge Q and stored energy is W. If the charge is increased to 2Q, the stored energy will be