Question

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

• A. $\frac {μ_oI_1I_o}{2\pi}$
• B. $\frac {μ_oI_1I_o}{4\pi}$
• C. Zero
• D. depends on the distance of the centre of the loop from the wire

Answer 1

Answer: (D)

depends on the distance of the centre of the loop from the wire

Answer 2

The correct option is (D): depends on the distance of the centre of the loop from the wire.