4.5 x 10-3 T. It has N = 950 turns uniformly over a length of (8%) Problem 9: A

Question

4.5 x 10-3 T. It has N = 950 turns uniformly over a length of (8%) Problem 9: A solenoid is producing a magnetic field of B d=0.85 m Randomized Variables B = 4.5 x 10-3 T N = 950 turns d=0.85 m 50% Part (a) Express the current 1 in terms of B, N and d 50% Part (b) Calculate the numerical value of 1 in amps Grade Summary 0% 100% Potential Submissions Attempts remaining: 7 (5% per attempt) detailed view cos0 cotan asin0acos0 atan() acotan) sinh) cosh0 tanhO cotanhO o Degrees Radians sin 456 END CLEAR Submit Hint I give up! Hints: 1 % deduction per hint. Hints remaining: 1 Feedback: 1% deduction per feedback

Explanation / Answer

a) B = mu0 N I / d

current, I = B d / (mu0 N)

b) I = B d / (mu0 N)

I = (4.5 * 10-3 * 0.85) / (4 pi * 10-7 * 950)

I = 3.20 A

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