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Hindi
2. Electric Potential and Capacitance
easy

શુદ્ધ પાણીનો ડાય ઈલેકટ્રીક અચળાંક $81$ છે. તે પરમિટિવિટી ........ હશે.

A

$7.16 \times 10^{-10}\, MKS$ એકમ

B

$8.86 \times 10^{-12}\, MKS$ એકમ

C

$1.02 \times 10^{13}\, MKS$ એકમ

D

ગણી શકાય નહિ

Solution

$ \in \,\, = \,\,{ \in _0}\,\,{ \in _r}\,$ તો $ \in \,\, = \,\,8.82\,\, \times \,\,{10^{ – 12}}\,\, \times \,\,81$

$ \in \,\, = \,\,7.1\,\, \times \,\,{10^{ – 10}}\,\,{C^2}\,\,\left( {N\,\, \times \,\,{m^2}} \right)$

Standard 12
Physics

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