A 1000-Turn Toroid Has a Central Radius of 4

question 49

Multiple Choice

A 1000-turn toroid has a central radius of 4.2 cm and is carrying a current of 1.7 A. The magnitude of the magnetic field along the central radius is

• A)8.1 × 10^-3 T.
• B)5.1 × 10^-2 T.
• C)1.6 × 10^-2 T.
• D)8.1 × 10^-2 T.
• E)0.

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