MCQ
The $ S.I.$ unit of magnetic permeability is
- A$A{m^{ - 1}}$
- B$Am$
- ✓$Henry\,{m^{ - 1}}$
- DNo unit, it is a dimensionless number
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$\left(\frac{1}{4 \pi \epsilon_{0}}=9 \times 10^{9} Nm ^{2} / C ^{2}\right)$
| List $I$ | List $II$ |
| $A$ Spring constant | $I$ $(T ^{-1})$ |
| $B$ Angular speed | $II$ $(MT ^{-2})$ |
| $C$ Angular momentum | $III$ $(ML ^2)$ |
| $D$ Moment of Inertia | $IV$ $(ML ^2 T ^{-1})$ |
Choose the correct answer from the options given below
Given : dimension of spider and fly is very small $w.r .t.$ to sphere $RI$ of glass $μ_g = \sqrt 2$