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Physics
A cubical box contains charge +Q at its centre. The total magnetic flux emerging from the box is :
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Q. A cubical box contains charge $+Q$ at its centre. The total magnetic flux emerging from the box is :
Rajasthan PMT
Rajasthan PMT 2003
Electric Charges and Fields
A
$ \frac{Q}{{{\varepsilon }_{0}}} $
36%
B
$ \frac{Q}{6{{\varepsilon }_{0}}} $
51%
C
$ \frac{Q}{4{{\varepsilon }_{0}}} $
14%
D
$\varepsilon_0Q $
0%
Solution:
According to Gausss theorem, total electric flux
$\phi=\frac{Q}{\varepsilon_{0}}$