Physics · 2021
JEE Main · 25 February 2021, Shift 1 · Q16
Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8: 1. The radius of…
Magnetic fields at two points on the axis of a circular coil at a distance of $\displaystyle 0.05$ m and $\displaystyle 0.2$ m from the centre are in the ratio $\displaystyle 8: 1$. The radius of coil is \_\_\_\_.
Official answer
(1)
0.$\displaystyle 1$ m
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.