16. 0/1 points | Previous Answers SerCP11 19.P.060 My Notes Ask Your Teache A ce

Question

16. 0/1 points | Previous Answers SerCP11 19.P.060 My Notes Ask Your Teache A certain superconducting magnet in the form of a solenoid of length 0.32 m can generate a magnetic field of 3.0 T in its core when its coils carry a current of 90 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid 8.495e-5x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. turns

Explanation / Answer

B = ??NI / L gives the field at the center of a solenoid

N = No. of turns
I = current (Amp)
L = length (m)
?? = 4?*10^-7 H/m

?N = BL/??I

N = (3)(0.32) / (4?*10^-7)(90)

N = 8488 turns

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