In this problem, we're going to use Gauss's law to get the net electric flux.
From Gauss's law:
Charge, Q = 10 nC = 10 × 10-9 C
ε0 = 8.85 × 10-12 C2/Nm2
A 10 nC point charge is at the center of a 4m x 4m x 4m cube. What is the electric flux through the top surface of the cube?
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