JEE Main 2020 Physics question

PhysicsMoving Charges and MagnetismJEE Main 2020

A galvanometer coil has 500 turns and each turn has an average area of . If a torque of 1.5 Nm is required to keep this coil parallel to a magnetic field when a current of 0.5 A is flowing through it, the strength of the field (in T) is ............... .

Answer: 20

Solution

Question ID VK-011075