Physics · 2012
NEET 2012 · Prelims · Code A · Q33
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 2 I,…
Two similar coils of radius $\displaystyle R$ are lying concentrically with their planes at right angles to each other. The currents flowing in them are I and $\displaystyle 2$ I, respectively. The resultant magnetic field induction at the centre will be :
Official answer
(3)
$\displaystyle \frac{\sqrt{5} \mu_0 \mathrm{I}}{2 \mathrm{R}}$
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NEET (UG) 2012 Physics question, with the answer from NTA’s final answer key. Where our answers come from.