Question

In the figure shown a current I₁ is established in the long straight wire AB. Another wire CD carrying current I₂ is placed in the plane of the paper. The line joining the ends of this wire is perpendicular to the wire AB. The resultant force on the wire CD is:

• A. Zero
• B. Towards negative x -axis
• C. Towards positive y - axis
• D. None of the above

Answer 1

The correct option is D

None of the above

$F_1\ne F_2$

But $F_1>F_2$


Therefore net force $CD$ is neither along $x$-axis and nor along $y$-axis.