JEE Mains · Physics · STD 11 - Units,dimensions and measurement
- JEE Mains 2025
- Easy
- MCQ
If \(B\) is magnetic field and \(\mu_0\) is permeability of free space, then the dimensions of \(\left(B / \mu_0\right)\) is
Pick an option to check your answer.
Answer & Solution
Correct Answer
(C) \(\mathrm{L}^{-1} \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
For a current carrying loop at centre
\(\begin{aligned}
& B=\frac{\mu_0 i}{2 R} \\
& \therefore \quad \frac{B}{\mu_0} \equiv \frac{i}{R} \equiv\left[\mathrm{AL}^{-1}\right]
\end{aligned}\)
\(\begin{aligned}
& B=\frac{\mu_0 i}{2 R} \\
& \therefore \quad \frac{B}{\mu_0} \equiv \frac{i}{R} \equiv\left[\mathrm{AL}^{-1}\right]
\end{aligned}\)
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