(8%) Problem 12: A solenoid is made of N- 5500 turns, has length _ - 25 cm, and radius R - 1.7 cm. The magnetic field at the center of the solenoid is measured to be B = 3. 7 x 10" T. Randomized Variables N= 5500 turns L = 25 cm R= 1.7 cm B = 3.7 x 10 T 4 50% Part (a) What is the current through the wires of the solenoid? Write your equation in terms of known quantities. D * 50% Part (b) Find the numerical value of the current in milliamps. Grade Summary I= 1880 Deductions Potential 97%