Three identical metal spheres are mounted on insulating stands. Initially, Sphere A has a net charge of -0.8 nC and Spheres B and C are uncharged. Sphere A is touched to Sphere B and removed. Then Sphere A is touched to Sphere C and removed. How many excess electrons or protons are left on Sphere A? O 2.5x10º excess protons O 1.25x10º excess electrons O 6.25x10® excess electrons O 6.25x10³ excess protons 2.5x10° excess electrons Correct Answer: 1.25x10º excess electrons

Three identical metal spheres are mounted on insulating stands. Initially, Sphere A has a net charge of -0.8 nC and Spheres B and C are uncharged. Sphere A is touched to Sphere B and removed. Then Sphere A is touched to Sphere C and removed. How many excess electrons or protons are left on Sphere A? O 2.5x10º excess protons O 1.25x10º excess electrons O 6.25x10® excess electrons O 6.25x10³ excess protons 2.5x10° excess electrons Correct Answer: 1.25x10º excess electrons

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter23: Electric Forces

Section23.2: Models Of Electrical Phenomena

Problem 23.1CE: Initially a glass rod and a piece of silk are neutral. After you rub the silk against the rod, the...

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