Magnetic Field of Straight Wires question from JEE Main 2021 (17 Mar, Shift 2)

Answer: (c)

1. Each semi-infinite straight wire ends at the foot of the perpendicular from P: $\frac{\mu_0 I}{4\pi r}$ each, both into the page.
2. Semicircle (clockwise): $\frac{\mu_0 I}{4r} = \frac{\mu_0 I}{4\pi r}\pi$, also into the page.
3. $B = \frac{\mu_0 I}{4\pi r}(2 + \pi)$
4. So the answer is (c).