Electrostatics

Related Questions

• Two small spheres each carrying a charge $q$are placed $r$ metre apart. If one of the spheres is taken around the other one in a circular path of radius $r$, the work done will be equal to

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• A given charge is situated at a certain distance from an electric dipole in the end-on position experiences a force F. If the distance of the charge is doubled, the force acting on the charge will be

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• An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

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• Force of attraction between two point charges \[Q\] and – Q separated by \[d\,metre\] is \[{F_e}\]. When these charges are placed on two identical spheres of radius \[R = 0.3\,d\] whose centres are \[d\,metre\]apart, the force of attraction between them is

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• Two electric charges $12\mu C$ and $- 6\mu C$ are placed 20 cm apart in air. There will be a point P on the line joining these charges and outside the region between them, at which the electric potential is zero. The distance of P from $- 6\mu C$ charge is

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