A straight segment
OC (of length
L) of a circuit carrying a current
I is placed along the x-axis. Two infinitely long straight wires
A and
B, each extending from
z=−∞ to
+∞, are fixed at
y=−a and
y=+a respectively, as shown in the figure. If the wires
A and
B each carry a current
I into the plane of the paper, obtain the expression for the force acting ont he segment
OC. What will be the force on
OC if the current in the wire
B is reversed?
![1071585_7ca38833c9d846ff90d05ec21c38cf64.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1071585_7ca38833c9d846ff90d05ec21c38cf64.png)