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AP Physics 2
10.2 Conservation of Electric Charge and the Process of Charging
10.1 Electric Charge and Electric Force
IntermediateMCQConceptual24.7k
A horizontal cylindrical rod labeled Metal Rod is positioned centrally, supported underneath by a vertical thin pillar labeled Insulating Stand resting on a flat horizontal floor line. To the left, a thick rectangular bar labeled Rubber Rod is tilted at a 45-degree angle, with its lower-right end touching the upper-left surface of the metal rod. Six small minus signs are drawn inside the rubber rod distributed along its length. The metal rod is smooth with no charge symbols drawn on it. All labels are in black text positioned adjacent to their respective objects. No other labels, lines, text, or axes appear.
A negatively charged rubber rod touches a neutral metal rod on an insulating stand.
An uncharged, solid metal rod is supported by an insulating stand. A negatively charged rubber rod is brought into contact with one end of the metal rod and then separated from it. Which of the following statements correctly describes the movement of mobile charge carriers during contact and the resulting net electric charge on the metal rod?

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