please answer

16.2 ample 8.3. The coil of a moving soil meter has 200 turns, wound on a non minus five former, its wise ing 20 cm and height 2 5 am It works in a constant field of 0.1 1. The moment of inertia of the mouth arts is 3 x 10 7 kg-m and the control spring produces a torque of 100 % 10 . Nm per radian. Calculate Ing current in the coil to produce a deflection of 120"