The SI unit of magnetic permeability is - Vidyadip

MCQ

The $SI$ unit of magnetic permeability is

A
$Wb\;m ^{-2}\; A ^{-1}$
B
$Wb\;m ^{-1}\; A$
C
$Wb\;m\;A ^{-1}$
✓
$Wb\;m ^{-1} \;A ^{-1}$

✓

Answer

Correct option: D.

$Wb\;m ^{-1} \;A ^{-1}$

d
$B =\frac{\mu_{0}}{4 \pi} \frac{{idlsin}(\theta)}{ r ^{2}}$

Now by putting Sl units of all measurable quantities in above formula

$\Rightarrow \frac{ W b }{ m ^{2}}=$ $\frac{ \mu_{0}Am }{ m ^{2}}$

$\Rightarrow \mu_0 =\frac{ W b }{ A \cdot m }$

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