Question Detail
Question
The surface charge density on a sphere with radius R=1 cm is 796 uC/m2. Determine the charge uniformly distributed on the surface of the sphere.
Correct Answer
Option A is the correct answer.
Detailed Explanation
Surface area A = 4piR2 = 4pi(0.01)2 = 1.2566x10-3 m2. Q = sigma x A = (796x10-6)(1.2566x10-3) = 1.00x10-6 C = 1.00 uC.
Hint
Surface area A = 4*pi*R2 = 4*pi*(0.01)2 = 1.2566x10-3 m2.