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Two long and parallel wires are at a distance of \( 0.1 \mathrm{~m} \) and a current of \( 5 \mathrm{~A} \) is flowing in each of these wires.
\( \mathrm{P} \) The force per unit length due to these wires will be

W.
(1) \( 5 \times 10^{-5} \mathrm{~N} / \mathrm{m} \)
(2) \( 5 \times 10^{-3} \mathrm{~N} / \mathrm{m} \)
(3) \( 2.5 \times 10^{-5} \mathrm{~N} / \mathrm{m} \)
(4) \( 2.5 \times 10^{-4} \mathrm{~N} / \mathrm{m} \)
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