Question

QUESTION 3 3) A metal sphere A has a charge of-15.0 μC is in contact with a neutral identical sphere B. and then separated. Then, a number of 4.0 x 1012 protons have been added to each sphere. (p +1.6 x 10-19 C) a) b) What is the charge of each sphere after been separated? What are the sign and the magnitude of the new charge on each sphere after the protons were added?

Answer 1

O -15.0 mu c O o muc A B When both are in contact then charge divided in two parts as both are identical spheres b) Proton added = 4 times 10^12 Charge added = 1.6 times 10^-19 times 4 times 10^12 C = 0.64 times 10^-6 C = 0.644C New Charge on sphere A = -7.5 mu c + 0.64 mu c = -6.86 mu c New Charge on sphere B = -7.5 mu c + 0.64 mu c = -6.86 mu c