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The intensity of the magnetic induction ...

The intensity of the magnetic induction field at the centre of a single turn circular coil of radius 5 cm carrying current of 0.9 A.

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The correct Answer is:
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`(B=mu_(0)i)/(2r)=(4pixx10^(-7)xx(0.9))/(2xx5xx10^(-2))=3.6xx10^(-6)pior36pixxT. `
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