Teaching UP PGT Mock Test Series 2024 Physics Moving Charges and Magnetism Magnetic Field on the Axis of a Circular Current Loop
A circular coil of radius 40 mm consists of 100 turns of conducting wire and the current through it is 20 mA. The magnetic field in the centre of the coil will be : (µ0 = 4π×10-7 Hm-1)
1
3.14×10-5 T
2
4.7×110-5 T
3
6.28×10-5 T
4
1.26×10-4 T