AP EAMCET · PHYSICS · Units and Dimensions
Among the following, the unit of permeability is NOT represented by
- A henry/metre
- B weber/ampere
- C ohm-second/metre
- D volt-second/metre \({ }^2\)
Answer & Solution
Correct Answer
(B) weber/ampere
Step-by-step Solution
Detailed explanation
\(\begin{aligned} \mathrm{B} & =\frac{\mu_0}{4 \pi} \frac{\mathrm{Idl} \sin \theta}{\mathrm{r}^2} \\ \mu_0 & =\frac{\mathrm{Br}^2}{\mathrm{Idl}}=\frac{\text { Tesla } \mathrm{m}^2}{\mathrm{Amp} \mathrm{m}} \\ & =\frac{\text { Weber }}{\text { Ampere meter }}\end{aligned}\)
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