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Physics
What is the flux through a cube of side a if a point charge of q is at one of its corner?
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Q. What is the flux through a cube of side a if a point charge of q is at one of its corner?
AIPMT
AIPMT 2012
Electrostatic Potential and Capacitance
A
$ \frac{2q}{\varepsilon _0} $
8%
B
$ \frac{q}{8\varepsilon _0} $
74%
C
$ \frac{q}{\varepsilon _0} $
9%
D
$ \frac{q}{2\varepsilon _0}6a^2 $
9%
Solution:
flux $\phi=\frac{ q }{8 \epsilon_{0}}$