Electrostatics

Related Questions

• An electron of mass ${m_e}$ initially at rest moves through a certain distance in a uniform electric field in time ${t_1}$. A proton of mass ${m_p}$ also initially at rest takes time ${t_2}$ to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio of ${t_2}/{t_1}$ is nearly equal to

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• A uniform electric field having a magnitude ${E_0}$ and direction along the positive $X - $ axis exists. If the potential $V$ is zero at $x = 0$, then its value at $X = + x$ will be

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• A hollow sphere of charge does not produce an electric field at any

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• The electric field due to an electric dipole at a distance r from its centre in axial position is E. If the dipole is rotated through an angle of ${90^o}$ about its perpendicular axis, the electric field at the same point will be

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• There are two equipotential surface as shown in figure. The distance between them is r. The charge of –q coulomb is taken from the surface A to B, the resultant work done will be

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