A point charge of -1.4 $\mu$C is located at the center of a right cylinder.If the electric flux through one of the circular end caps is -2.4 * 10⁴ Nm²/C,what is the flux through the cylindrical section between the end caps?

Question

Quizplus · Accepted Answer

Since the electric flux is negative, we know that the electric field through the end cap is directed inward, towards the point charge. By Gauss's Law, the total electric flux through the cylinder is also negative, since the net charge enclosed is negative. Since the electric field lines are directed inward through the end cap, we know that they must be directed outward through the curved surface of the cylinder. Therefore, the flux through the cylindrical section is positive. Thus, the total electric flux is the sum of the flux through the end cap and the flux through the cylindrical section, so the answer is B, -1.1x10^15 Nm^2/C.

A Point Charge of -1 μ\muμ C Is Located at the Center of a Right Cylinder

A Point Charge of -1 $\mu$ C Is Located at the Center of a Right Cylinder