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The mag. field (B) at the centre of a circular coil of radius 'a', through which a current I flows
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Mar 20, 2022
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12th Physics
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The mag. field (B) at the centre of a circular coil of radius 'a', through which a current I flows is.............
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(a) `B alpha a` (b) `Balpha1/I` (c) `B alphaI` (d) `BalphaI^2`
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