Two concentric circular coils of five turns each are situated in the same plane. Their radii are
Channel: Doubtnut
Date: 2020-05-31

Two concentric circular coils of five turns each are situated in the same plane. Their radii are 20 cm and 30 cm and they carry respectively 0.2 A and 0.3 A current in same direction. The magnetic field in tesla at the centre is