Electrostatics

Related Questions

• Three particles, each having a charge of $10\,\mu C$are placed at the corners of an equilateral triangle of side $10\,cm$. The electrostatic potential energy of the system is (Given $\frac{1}{{4\pi {\varepsilon _0}}} = 9 \times {10^9}N - {m^2}/{C^2}$)

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• Two parallel plates have equal and opposite charge. When the space between them is evacuated, the electric field between the plates is $2 \times {10^5}V/m$. When the space is filled with dielectric, the electric field becomes $1 \times {10^5}V/m$. The dielectric constant of the dielectric material

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• When a body is earth connected, electrons from the earth flow into the body. This means the body is…..

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• \[{F_g}\] and \[{F_e}\] represents gravitational and electrostatic force respectively between electrons situated at a distance 10 cm. The ratio of \[{F_g}/{F_e}\] is of the order of

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• Two opposite and equal charges $4 \times {10^{ - 8}}coulomb$ when placed $2 \times {10^{ - 2}}cm$ away, form a dipole. If this dipole is placed in an external electric field $4 \times {10^8}newton/coulomb$, the value of maximum torque and the work done in rotating it through $180^\circ $ will be

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