Electrostatics

Related Questions

• A table tennis ball which has been covered with conducting paint is suspended by a silk thread so that it hang between two plates, out of which one is earthed and other is connected to a high voltage generator. This ball

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• A force \[F\] acts between sodium and chlorine ions of salt (sodium chloride) when put \[1\,cm\] apart in air. The permittivity of air and dielectric constant of water are \[{\varepsilon _0}\] and \[K\] respectively. When a piece of salt is put in water electrical force acting between sodium and chlorine ions \[1\,cm\] apart is

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• An electric dipole of moment $p$ is placed in the position of stable equilibrium in uniform electric field of intensity $E$. It is rotated through an angle $\theta $ from the initial position. The potential energy of electric dipole in the final position is

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• Two point charges $3 \times 10^{–6}C$ and $8 \times 10^{–6}$ C repel each other by a force of $6 \times 10^{–3} N. If each of them is given an additional charge $– 6 \times 10^6$ C, the force between them will be

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• State which of the following is correct

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