Physics · 2019
JEE Main · 10 April 2019, Shift 2 · Q18
The magnitude of the magnetic field at the center of an equilateral triangular loop of side 1 m which is carrying a current of 10 A is: [Take μ_o =4…
The magnitude of the magnetic field at the center of an equilateral triangular loop of side $\displaystyle 1$ m which is carrying a current of $\displaystyle 10$ A is :
[Take $\displaystyle \mu_{\mathrm{o}}=4 \pi \times 10^{-7} \mathrm{NA}^{-2}$ ]
Official answer
(4)
$\displaystyle 18 \mu \mathrm{~T}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.