PHY · PHY-2023-CG3-038PhysicsSection B
A very long conducting wire is bent in a semi-circular shape from A to B as shown in figure. The magnetic field at point P for steady current configuration is given by (figure-dependent: straight wire carrying current i into point A, semicircular arc of radius R from A to B with center P, then straight wire carrying current i away from point B — not transcribable as text)