A 1000-Turn Toroidal Solenoid Has a Central Radius of 4

question 24

Multiple Choice

A 1000-turn toroidal solenoid has a central radius of 4.2 cm and is carrying a current of 1.7 A.What is the magnitude of the magnetic field inside the solenoid at the central radius?

• A) 8.1 mT
• B) 51 mT
• C) 16 mT
• D) 81 mT
• E) zero

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