A Long Solenoid with 15 Turns Per Centimeter Has a Core

question 60

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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