Mathematics · Moving Charges and Magnetism
A toroid has a non-ferromagnetic core of inner radius 23 cm and outer radius 28 cm, around which 4000 turns of a wire are wound. If the current in the wire is 9 A, find the magnetic field (a) inside the core of the toroid and (b) outside the toroid.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(a) 2.82 × 10-2 T, (b) 0 T✓
- 2(a) 3.0 × 10-2 T, (b) 0.5 T
- 3(a) 28.2 T, (b) 0 T
- 4(a) 0.82 × 10-3 T, (b) 0.5 T
Correct answer
(a) 2.82 × 10-2 T, (b) 0 T
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