Q 1.19)

A point charge of 2.0 μC is at the center of a cubic Gaussian surface 9.0 cm on edge. What is the net electric flux through the surface?


 

Net electric flux ( ϕ Net ) through the cubic surface: ϕ=qε0

q= Net charge contained inside the cube
=2.0μC=2×106C
 ϕNet=2×10-68.854×1012=2.26×105 Nm2C1