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How Many Turns Should a 10-Cm Long Ideal Solenoid Have

Question 140

Multiple Choice

How many turns should a 10-cm long ideal solenoid have if it is to generate a 1.5-mT magnetic field when 1.0 A of current runs through it? (μ0 = 4π × 10-7 T ∙ m/A)


A) 12
B) 15
C) 120
D) 1200
E) 3200

Correct Answer:

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