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प्रश्न
Magnetic field at the centre of a circular coil of radius r, through which a current I flows is ______.
विकल्प
- directly proportional to r
- inverseley proportional to I
- directly proportional to I
- directly proprotional to I2
MCQ
रिक्त स्थान भरें
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उत्तर
Magnetic field at the centre of a circular coil of radius r, through which a current I flows is directly proportional to I.
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