A tightly wound solenoid is 15 cm long, has 350 turns, and carries a current of 3.0 A. If you ignore end effects, you will find that the value of at the center of the solenoid when there is an iron core of magnetization M = 1.4 * 106 A/m is approximately
A) 11 mT
B) 8.8 mT
C) 1.8 mT
D) 7.0 mT
E) 6.2 mT
Correct Answer:
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