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Obtain an expression for the electric potential due to a small dipole of dipole moment p, at a point r from its centre, for much larger distances compared to the size of the dipole.
Three point charges q, 2q and nq are placed at the vertices of an equilateral triangle. If the potential energy of the system is zero, find the value of n.
State Gauss's Law in electrostatics. Apply this to obtain the electric field E at a point near a uniformly charged infinite plane sheet.
Two long straight wires 1 and 2 are kept as shown in the figure. The linear charge density of the two wires are λ₁ = 10 μC/m and λ₂ = − 20 μC/m. Find the net force F experienced by an electron held at point P.
A point P lies at a distance x from the mid point of an electric dipole on its axis. The electric potential at point P is proportional to
Assertion (A): The electric potential due to a small electric dipole is zero at every point on its equatorial plane. Reason (R): Every point on the equatorial plane of a dipole is equidistant from the two charges +q and –q, so the magnitudes of the potentials due to the two charges are equal and opposite in sign.
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