Mathematics · Magnetic Circuits
In a rectangular iron core, a 3 mm air-gap is cut. The mean length of the magnetic path in iron is 150 cm with a cross-section of 3 cm × 3 cm. Two coils are present with number of turns Na = 600 and Nb = 500, carrying currents of 2 A and 1 A respectively such that their fluxes assist each other. What is the approximate flux in the air gap? (Assume relative permeability μr = 1400)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1100 μWb
- 20 μWb
- 3175.84 μWb✓
- 4200 μWb
Correct answer
175.84 μWb
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