Electrostatics

Related Questions

• In a certain charge distribution, all points having zero potential can be joined by a circle S. Points inside S have positive potential and points outside S have negative potential. A positive charge, which is free to move, is placed inside S

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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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• A conducting sphere of radius $R = 20$ cm is given a charge $Q = 16\mu C$. What is $\overrightarrow E $ at centre

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• If a charged spherical conductor of radius $10\,cm$ has potential $V$ at a point distant $5\,cm$ from its centre, then the potential at a point distant $15\,cm$ from the centre will be

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• The insulation property of air breaks down at $E = 3 \times {10^6}$ volt/metre. The maximum charge that can be given to a sphere of diameter $5\,m$ is approximately (in coulombs)

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