Electrostatics

Related Questions

• A solid conducting sphere of radius a has a net positive charge 2Q. A conducting spherical shell of inner radius \[b\] and outer radius c is concentric with the solid sphere and has a net charge – Q. The surface charge density on the inner and outer surfaces of the spherical shell will be

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• Two copper balls, each weighing 10g are kept in air 10 cm apart. If one electron from every \[{10^6}\] atoms is transferred from one ball to the other, the coulomb force between them is (atomic weight of copper is 63.5)

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• A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium, if $q$is equal to

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• Two insulated charged conducting spheres of radii $20\,cm$ and $15\,cm$ respectively and having an equal charge of $10\,C$ are connected by a copper wire and then they are separated. Then

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• The dimension of (1/2) ${\varepsilon _0}{E^2}({\varepsilon _0}$: permittivity of free space; $E$: electric field) is

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