The straight wire A B carries a current I . The ends of the wire subtend angles ₁ and ₂ at the point P as shown in figure. The magnetic field at the point P is

Step-by-step solution

The magnetic field at a point P due to a current carrying straight wire, such that the ends of the wires, makes angle and (see figure) is given by B= ₀ I 4 d ( - ) where, d is the distance between the point P and wire. In the given problem, = ₁ and = ₂ B= ₀ I 4 d ( ₁- ₂ )