Question

Two long parallel wires are at a distance ` 2d` apart. They carry steady equal currents flowing out of the plane of the paper , as shown. The variation of the magnetic field `B` along the line `XX` is given by
A.
B.
C.
D.

Answer 1

Correct Answer - (B)
(ii) (a) Field close to wire will tends to OO
(b) Field at cetre will be zero
(c ) One either side of wire field will be oppo site so option `(B)` will be correct