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1. Electric Charges and Fields
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A charge $Q$ is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is
A$\frac{Q}{{2{\varepsilon _0}}}$
B$\frac{Q}{{6{\varepsilon _0}}}$
C$\frac{Q}{{8{\varepsilon _0}}}$
D$\frac{Q}{{{\varepsilon _0}}}$
(AIPMT-2000)
Solution
The charge is kept at a corner of a cube so it can be visualised as being at the centre of a cube of double its side i.e.,comprising of 8 such cubes kept besides and top of each other.
Thus contribution to each smaller cube will be $\frac{ Q }{8 \epsilon_{0}}$.
Thus contribution to each smaller cube will be $\frac{ Q }{8 \epsilon_{0}}$.
Standard 12
Physics
