A large negatively charged object isplaced on an insulated table. A neutral meta

Question

A large negatively charged object isplaced on an insulated table. A neutral metallic ball rollsstraight toward the object, but stops before it touches it. Asecond neutral metallic ball rolls along the path followed by thefirst ball, strikes the first ball, and stops. The first ball rollsforward, but does not touch the negative object. At no time doeseither ball touch the negative object. What is the final charge oneach ball? a The first ball ispositive, and the second ball is negative. b Both balls remainneutral. c The first ball isnegative, and the second ball is positive. d Both balls arepositive. can someone work this out? Thanks

Explanation / Answer

Charges will be induced on the metal balls: First ball front - positive                  back - negative        chargesinduced on the first ball Second ball   front - positive                         back - negative     second ball just beforecontact with the first ball Positive charge will be transferred from the second ball tothe first ball on contact (actually elecrons flow to the secondball) First ball - positive Second ball - negative      the finalstate of the metal balls

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