Two isolated spheres hold the same charge,but sphere A has twice the radius of sphere B.How is the voltage near the surface of sphere A related to the voltage near the surface of sphere B?

Question

Quizplus · Accepted Answer

The voltage near the surface of a sphere is given by the formula V = kQ/r, where k is the Coulomb constant, Q is the charge on the sphere, and r is the radius of the sphere. Since both spheres have the same charge, the voltage near their surfaces is inversely proportional to their radii. Using this relationship, we get: V_A / V_B = (kQ/2R) / (kQ/R) = 2 Therefore, V_A = 2V_B. Choice B is the correct answer.

Two Isolated Spheres Hold the Same Charge,but Sphere a Has