Electrostatics

Related Questions

• In the rectangle, shown below, the two corners have charges ${q_1} = - 5\mu C$and ${q_2} = + 2.0\mu C$. The work done in moving a charge $+ 3.0\mu C$ from $B$ to $A$ is (take $1/4\pi {\varepsilon _0} = {10^{10}}N{\rm{ - }}{m^2}/{C^2}$)

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• Potential at a point x-distance from the centre inside the conducting sphere of radius R and charged with charge Q is

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• A charge of 10 e.s.u. is placed at a distance of 2 cm from a charge of 40 e.s.u. and 4 cm from another charge of 20 e.s.u. The potential energy of the charge 10 e.s.u. is (in ergs)

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• A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to potential 3 e.s.u. and the outer sphere is earthed. The charge on the inner sphere is

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• \[ABC\] is a right angled triangle in which \[AB = 3\,cm\] and \[BC = 4\,cm\]. And $\angle ABC = \pi/2$. The three charges \[ + 15,\; + 12\] and \[ - 20\,e.s.u.\] are placed respectively on \[A\], \[B\] and \[C\]. The force acting on \[B\] is

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