Physics-Electric Flux

NEET Physics Electric Flux MCQ Question

Type: MCQ-diagram based-Medium-Class 12

Consider a right circular cylinder with a uniform electric field E in the positive x direction for x > 0 and E in the negative x direction for x < 0. The cylinder has a length of 20 cm and a radius of 5 cm, centered at the origin with its axis along the x-axis. One face is at x = +10 cm and the other at x = -10 cm. Which of the following correctly describes the net electric flux through the curved surface of the cylinder?

Question diagram
A

The net electric flux through the curved surface is zero.

B

The net electric flux through the curved surface is maximum.

C

The net electric flux through the curved surface is equal to the charge enclosed.

D

The net electric flux through the curved surface is equal to the product of E and the cylinder's volume.

Correct Answer

Option A

Detailed Explanation

The electric field lines are parallel to the curved surface of the cylinder, thus the electric flux through the curved surface is zero as per Gauss's law.

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