Electrostatics

Related Questions

• State which of the following is correct

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• An electric dipole is placed along the $x - $axis at the origin $O$. A point $P$ is at a distance of $20\,cm$ from this origin such that $OP$ makes an angle $\frac{\pi }{3}$ with the x-axis. If the electric field at $P$ makes an angle $\theta $ with the x-axis, the value of $\theta $ would be

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• The potential at a distance R/2 from the centre of a conducting sphere of radius R will be

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• There is an electric field $E$ in X-direction. If the work done on moving a charge $0.2\,C$ through a distance of $2\,m$ along a line making an angle $60^\circ $ with the X-axis is 4.0, what is the value of $E$

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• The ratio of electrostatic and gravitational forces acting between electron and proton separated by a distance \[5 \times {10^{ - 11}}m,\] will be (Charge on electron = $1.6 \times 10^{–19} C$, mass of electron = $9.1 \times 10^{–31}$ kg, mass of proton = \[1.6 \times {10^{ - 27}}kg,\] \[\,G = 6.7 \times {10^{ - 11}}\,N{m^2}/k{g^2})\]

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