Electrostatics ...

In the following diagram, the charge and potential difference across 8 μF capacitance will be respectively

A conducting sphere of radius R, and carrying a charge q is joined to a conducting sphere of radius 2R, and carrying a charge –2q. The charge flowing between them will be

An arc of radius r carries charge. The linear density of charge is λ and the arc subtends a angle π /3at the centre. What is electric potential at the centre

A neutral water molecule (H₂O) in it\'s vapor state has an electric dipole moment of magnitude 6.4 × 10^–30 C–m. How far apart are the molecules centres of positive and negative charge

A charge Q is fixed at a distance d in front of an infinite metal plate. The lines of force are represented by

In a parallel plate capacitor the separation between the plates is 3 mm with air between them. Now a 1 mm thick layer of a material of dielectric constant 2 is introduced between the plates due to which the capacity increases. In order to bring its capacity to the original value the separation between the plates must be made

Find equivalent capacitance between A and B

The radii of the inner and outer spheres of a condenser are 9 cm and 10 cm respectively. If the dielectric constant of the medium between the two spheres is 6 and charge on the inner sphere is 18 ×10^–9 coulomb, then the potential of inner sphere will be, if the outer sphere is earthed

In the following figure, the charge on each condenser in the steady state will be