Question

Consider two concentric spherical shells with different radii, namely one is inside the other. The spherical shell inside has radius R1 = 7.00 cm and charge q1 = +3.00×10^-6 C; the spherical shell outside has radius R2 = 17.0 cm and charge q2 = −5.00×10^-6 C. For both shells charges are distributed uniformly over their surfaces. Assume that V = 0 at large distances from both shells.
A) Find the electric potential of the two shells at the distance r = 3.50 cm from their center.
B) Find the electric potential of these two spherical shells at the distance r = 12.0 cm from their center.
C) Find the electric potential of these two shells at the distance r = 24.0 cm from their center.

Answer 1