answer both parts please

(8%) Problem 9: The magnetic field at the center of a solenoid L = 75 cm in length is B = 0.44 T when a current of / = 5.5 A moves through the solenoid wire. Forbes, David - david.forbes @doane.edu @theexpertja.com - tracking id: 9N69-72-B9-45-AB7A-36846. In accordance with Expert TA's Terms of Service, copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. D A 50% Part (a) Solve the formula for the magnetic field near the center of a long, tightly wound solenoid for the number of turns, N, in the solenoid. The expression should be in terms of the given variables. Grade Summary N= 1 Deductions 0% Potential 100% B Ho 7 8 9 Submissions B d 4 5 6 Attempts remaining: 1 (100% per attempt) g h I 2 3 detailed view i k L + 0 END m P t VO JACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. 4 50% Part (b) Calculate the value of the number of turns, N