Question

(a) An electric dipole is kept first to the left and then to the right of a negatively charged infinite plane sheet
having a uniform surface charge density. The arrows p1 and p2 show the directions of its electric dipole moment
in the two cases. Identify for each case, whether the dipole is in stable or unstable equilibrium. Justify each
answer. (b) Next, the dipole is kept in a similar way (as shown), near an infinitely long straight wire having
uniform negative linear charge density. Will the dipole be in equilibrium at these two positions. Justify your
answer

Answer 1

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