The current-loop PQRSTP formed by two circular segments of radii `R_(1)` and `R_(2
Channel: Doubtnut
Date: 2021-11-08

The current-loop PQRSTP formed by two circular segments of radii `R_(1)` and `R_(2)` carries a current of I ampers. Find the magnetic field at the common centre O. what will be the field if angle `alpha = 90^(@)` ?