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The electric field in a region is given by $\;\overrightarrow{E}=\large\frac{\in_{0} x \hat{i}}{l}\;.$ Find the charge contained inside a cubical volume bounded by the surfaces $\;x=0 , x=a , y=0 , y=a , z=0 , z=a $ where $a= 10^{-2} m$ and $l= 2 \times 10^{-2}\; m$


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Answer : (c) $\;2.2\times10^{-12}\;C$
Explanation : Electric flux through five surfaces is zero . The electric flux through on surface x=a plane is :


answered Feb 5, 2014 by yamini.v
edited Aug 21, 2014 by thagee.vedartham

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