Question Detail

PHY 102 Electrostatics: Electric Charge and Coulomb's Law Objective Question

Question

Outside a uniformly charged spherical shell, the electric field behaves as if:
Options
A The charge is spread infinitely wide.
B All the charge is concentrated at the center as a point charge.
Correct Answer
C The charge is only present on the poles of the sphere.
D The field strength is independent of distance.
Correct Answer

Option B is the correct answer.

Detailed Explanation

For points outside the sphere, Gauss's Law shows the field magnitude is E = kQ/r², exactly the same as a point charge Q at the center.

Hint

Standard inverse-square behavior for spherical symmetry.

Question Info