The figure shows a long straight wire ca...

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.

Straight wire attracts the ring

Straight wire attracts a small element of the ring

Straight wire does not attract any small element of the ring

none of these

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The correct Answer is:

`I_1` produce circular magnetic lines current `I_2` is each small circular element is parallel to `(theta=0^@)` magnetic field. Hence, force is zero.

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