A net flux of 1.7 *10⁶ N.m²/C is produced by a set of point charges inside a cube whose side length is 0.10 m. The set of charges that can produce this flux is .

Question

Quizplus · Accepted Answer

According to Gauss's law, the net electric flux through a closed surface is equal to the charge enclosed divided by the permittivity of free space. The net flux is 1.7 * 10^6 N.m^2/C, which corresponds to a net charge of 15 $\mu$ C (since 1.7 * 10^6 N.m^2/C = 15 $\mu$ C * 8.85 * 10^-12 C^2/N.m^2). The set of charges in option B sums to 15 $\mu$ C (20 - 8 + 3 = 15 $\mu$ C).

A Net Flux of 1 μ\muμ C, +8 μ\muμ C, -3 μ\muμ C B) 20

A Net Flux of 1 $\mu$ C, +8 $\mu$ C, -3 $\mu$ C
B) 20