1. A -4.50 nC point charge is surrounded by a electrostatic conducting spherical
ID: 1319719 • Letter: 1
Question
1. A -4.50 nC point charge is surrounded by a electrostatic conducting spherical shell that has an inner radius of 7.00 cm, an outer radius of 9.00 cm, and a net charge of +- 6.50 nC. A) Calculate the electric potential (V) 16.0 cm from the point charge. Assume V-0 as r --> infinity. (112V) B) Calculate the electric potential 8.00 cm from the point charge. (200V) (Remember that if E=0, dV/dr = 0)! C) Calculate the electric potential 4.00 cm from the point charge. (-233 V) D) How much energy would a proton require to travel from infinitely far away to the inner shell surface? (3.20 x 10^-17 J)Explanation / Answer
a) net charge = 2 nC
Therefore, potential at 16 cm distance = 9*109 * 2/16cm
=112.5 V
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