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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2012
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Two similar coils of radius R are lying concentrically with their planes at right angles to each other.The currents flowing in them are I and 2I, respectively. The resultant magnetic field induction at the centre will be


( A ) $\frac{\mu_0I}{R}$
( B ) $\frac{\mu_0I}{2R}$
( C ) $\frac{\sqrt{5}\mu_0I}{2R}$
( D ) $\frac{3\mu_0I}{2R}$

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