A point charge of 2uc is at the centre of a cubic Gaussian surface 9cm on the edge. Calculate the flux through one face of the cube.
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Explanation:
Net electric flux (ΦNet) through the cubic surface is given by,
Where, ∈0 = Permittivity of free space
= 8.854 × 10−12 N−1C2 m−2
q = Net charge contained inside the cube = 2.0 μC = 2 × 10−6 C
∴
= 2.26 × 105 N m2 C−1
The net electric flux through the surface is 2.26 ×105 N m2C−1.
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