A solenoid with a certain number of turns N and carrying a current of 2.000 A has a length of...
A) 2318
B) 1591
C) 860.0
D) 1218
E) 3183
Homework Answers
Field B = μNI/L
B = 9mT = 9*10^-3 T
current I = 2A
length L = 34 cm = 0.34 m
9*10^-3 = (4π*10^-7) * N * 2/0.34
N = 1218
(D)
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