Question

A long straight wire is carrying current I in $+z$ direction. The x-y pkane contains a closed circular loop carrying current $I_2$ and not encircling the straight wire. The force on the loop will be.

• A. ${\mu }_0{I}_2{I}_0/2\pi$
• B. ${\mu }_0{I}_1{I}_2/4\pi$
• C. Zero
• D. Depends on the distance of the circle of the loop from the wire

Answer 1

The correct option is D Depends on the distance of the circle of the loop from the wire

Situation is shown in the figure given.
Thus, the force depends on the distance of the centre of the loop from the wire.