The magnetic moment of a current (I) carrying circular coil of radius ' $r$ ' and number of turns ' $n$ '…
The magnetic moment of a current (I) carrying circular coil of radius ' $r$ ' and number of turns ' $n$ ' depends on
- n only
- I only
- $r$ only
- n, I and r
Solution
$\begin{aligned} & \mathrm{m}=\mathrm{nI} A \\ & \mathrm{~m}=\mathrm{nl}\left(\pi \mathrm{r}^2\right)\end{aligned}$
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Asked in: MHT CET 2023 (12 May Shift 1)
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