Physics · 2022
JEE Main · 29 July 2022, Shift 1 · Q56
A closely wounded circular coil of radius 5 cm produces a magnetic field of 37.68 × 10^-4 T at its center. The current through the coil is \ \ \ \ A.…
A closely wounded circular coil of radius $\displaystyle 5$ cm produces a magnetic field of $\displaystyle 37.68 \times 10^{-4} \mathrm{~T}$ at its center. The current through the coil is \_\_\_\_ A.
[Given, number of turns in the coil is $\displaystyle 100$ and $\displaystyle \pi=3.14$ ]
Official answer
3
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.