Mathematics · Magnetic Circuits
A toroidal core has a mean circumference of 30 cm, a cross-sectional area of 2 cm2, and a relative permeability of 1000. A coil with 500 turns is wound on the core. What is the reluctance of the magnetic circuit?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.39 × 106 A-t/Wb
- 21.19 × 105 A-t/Wb
- 31.19 × 106 A-t/Wb✓
- 42.39 × 105 A-t/Wb
Correct answer
1.19 × 106 A-t/Wb
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