The electric flux through a spherical Gaussian surface of radius R centered about an amount of charge Q is 1200 N/C m².What is the electric flux through a cubic Gaussian surface of side R centered about the same charge Q?

Question

Quizplus · Accepted Answer

The electric flux is given by Φ = Q/ε0, where Q is the charge enclosed by the Gaussian surface and ε0 is the permittivity of free space. Since both the spherical and cubic Gaussian surfaces have the same radius R and enclose the same amount of charge Q, they have the same value of Φ. Therefore, the electric flux through the cubic Gaussian surface is also 1200 N/C m², which is choice C.

The Electric Flux Through a Spherical Gaussian Surface of Radius