A conductor of length 0.04 m is tangentially connected to a circular loop of radius 0.03 m perpendicular to its plane. Find the magnetic field induction at the centre of the loop, if 4 A current is passed through the conductor as shown in figure.

The magnetic field at the centre of a circular current carrying loop of radius 12 cm is 6 × 10−6 T. What will be the magnetic moment of the loop? - Physics | Shaalaa.com