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Questions  >>  CBSE XII  >>  Math  >>  Model Papers
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A change q is placed at the center of a cube of side l. What is the electric flux passing through each face of the cube ?

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Answer:
One face of the cube is $ABCD $ having side of length 'l'
At the center of the cube a charge $+q =+l \mu c$ is placed, then according to guass's theorem , electric fluic through the six faces (all faces) of the cube will be $ \large\frac{q}{6 \in_0} $$Nm^2c^{-1}$
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