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  4. The unit of expression μ 0ε 0 is

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Q. The unit of expression $ {{\mu }_{0}}{{\varepsilon }_{0}} $ is

CMC MedicalCMC Medical 2007

Solution:

Velocity of light, $ c=\frac{1}{\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}} $ or $ {{\mu }_{0}}{{\varepsilon }_{0}}=\frac{1}{{{c}^{2}}} $ $ =\frac{1}{{{(m\text{/}s)}^{2}}} $ $ ={{s}^{2}}\text{/}{{m}^{2}} $