The figure shows a long straight wire carrying a current $I_{1}$ along the axis of a circular ring carrying a current $I_{2}$ . Identify the correct statement.
Given image

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Straight wires attract the ring

Straight wires attract a small element of the ring

Straight wires does not attract any small elements of the ring

None of the above

answer is C.

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Detailed Solution

$I_{1}$ produces circular magnetic field lines current $I_{2}$ is each small circular element is parallel to $(θ = 0 °)$ magnetic field. Hence, force is zero.

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