Physics · 2022
JEE Main · 26 July 2022, Shift 2 · Q46
Two concentric circular loops of radii r_1=30 cm and r_2=50 cm are placed in X-Y plane as shown in the figure. A current I=7 A is flowing through…
Two concentric circular loops of radii $\displaystyle \mathrm{r}_1=30 \mathrm{~cm}$ and $\displaystyle \mathrm{r}_2=50 \mathrm{~cm}$ are placed in X-Y plane as shown in the figure. A current $\displaystyle I=7 \mathrm{~A}$ is flowing through them in the direction as shown in figure. The net magnetic moment of this system of two circular loops is approximately :
Official answer
(2)
$\displaystyle -\frac{7}{2} \hat{k} A m^2$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.