Physics · Moving Charges and Magnetism
A circular current-carrying coil produces a magnetic field B0 at its centre. The coil is rewound so as to have three turns and the same current is passed through it. The new magnetic field at the centre is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 19 B0✓
- 2B0/9
- 3B0/3
- 43 B0
Correct answer
9 B0
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