A Long Solenoid with 15 Turns Per Centimeter Has a Core

question 75

Multiple Choice

A long solenoid with 15 turns per centimeter has a core of annealed iron. When the current is 1.00 A, the magnetic field inside the iron core is 2.46 T. The applied field _app is approximately

• A) 18.8 \(\mu\)T
• B) 2.46 T
• C) 4.32 mT
• D) 3.87 T
• E) 1.88 mT

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