Calculate the potenital energy of a nanocoulomb charge when placed at a distance of 10 cm from a microcoulomb charge.

Calculate the electric field due to a charge of -8.0 xx 10^-8 C at a distance of 5.0 cm from it

A spherical shell of radius 10 cm has 10muC charge. Calculate the electric field intensity (i) at a distance of 5 cm and (ii) at a distance of 30 cm from the centre of the spherical shell.

Three charges -q, +q and -q are placed along a st. line at equal distance , say a. Calculated the potential energy of this system of charges (i) when +q charge is in the middle and (ii) when this charge is at one end.

The charges of an electric dipole are respectively 32xx10^(-7) coulomb and -32xx10^(-7) coulomb are separated by a distance of 10 cm . Find the field at a point situated at a distance of 8 cm from each charge.

A spherical shell of radius 20 cm has 20 mu C charge placed in vacuum. Calculate the electric field intensity (i) at a distance of 15 cm and (ii) at a distance of 40 cm from the centre of the spherical shell.

Two identical charges, 5 muC each are fixed at a distance 8 cm and a charged particle of mass 9 xx 10^(-6) kg and charge -10 muC is placed at a distance 5 cm from each of them and is released. Find the speed of the particle when it is nearest to the two charges.

Two identical charges, 5 muC each are fixed at a distance 8 cm and a charged particle of mass 9 xx 10^(-6) kg and charge -10 muC is placed at a distance 5 cm from each of them and is released. Find the speed of the particle when it is nearest to the two charges.

A non conducting spherical shell of diameter 10 cm has a charge of 1.6 xx 10^(-4)C . A charge of 20 C is placed at a distance of 10 cm from its centre, then force between them will be :-