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Physics-

General

Easy

Question

Find the electric dipole moment of a non-conducting ring of radius $a$ , made of two semicircular rings having linear charge densities $negative 1$ and $plus 1$ as shown in Figure.

$2 λ a^{2}$
4 $λ a^{2}$
$λ a^{2}$
$2 \sqrt{2} λ a^{2}$

The correct answer is: 4 $blank lambda a to the power of 2 end exponent$

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