Question

A 250-turn rectangular coil of length 2.1 cm and width 1.25
cm carries a current of 85 μA and subjected to magnetic field
of strength 0.85 T. Work done for rotating the coil by 180º
against the torque is [2017]
(a) 4.55 μJ (b) 2.3 μJ
(c) 1.15 μJ (d) 9.1 μJ

Answer 1

Answer:

1 answer

A 250 - Turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 mu A and subjected to a magnetic field of strength 0.85 T. Work ...