Question

(8%) Problem ?2: Consider a 50-turn circular loop with a radius of 1.6 cm in a 055-T magnetic field. This coil is going to be used in a galvanometer that reads 35 ? A for a full-scale deflection. Such devices use spiral springs which obey an angular form of Hooke's law, where the restoring torque is Here is the torque constant and ? is the angular displacement, in radians, of the spiral spring from equilibrium, where the magnetic field and the normal to the loop are parallel. 50% Part (a) Calculate the tnaximum torque, in newton meters, on the loop when the full-scale current flows in it. ? 50% Part (b) what is the torque constant of the spring in newton meters per radian, that must be used in this device? Assume the full-scale
Please answer a and b

Answer 1