The Total solution for NCERT class 6-12
A point charge of 2.0 μCis at the centre of a cubic Gaussian surface 9.0 cm on edge. What is the netelectric flux through the surface?
Net electric flux (ΦNet) through the cubic surface is given by,
Where,
∈0 = Permittivity offree 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 fluxthrough the surface is 2.26 ×105 Nm2C−1.