Two similar coils of radius \( \mathrm{R} \) are lying concentrical...

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Two similar coils of radius \( \mathrm{R} \) are lying concentrically with their planes at right angles to each other. The currents
P flowing in them are I and 2I, respectively. The resultant-

W magnetic field induction at the center will be: \( \quad(2012 \) Pre)
(a) \( \frac{\sqrt{5} \mu_{0} I}{2 R} \)
(b) \( \frac{3 \mu_{0} \mathrm{I}}{2 \mathrm{R}} \)
(c) \( \frac{\mu_{0} I}{2 R} \)
(d) \( \frac{\mu_{0} I}{R} \)
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