Question

Find the value of ${\mu }_0{\epsilon }_0$. Symbols have their usual meanings.

Answer 1

${\mu }_o=$Permeability of vacuum$=4\pi \times {10}^{-7}H$

${ϵ}_o=$permittiviy of vacuum$=8.85\times {10}^{-12}F/m$

$\therefore {\mu }_o{ϵ}_o=4\pi \times {10}^{-7}\times 8.85\times {10}^{-12}=\frac{1}{9}\times {10}^{-16}$