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ARC-Easy / MCAS_2006_9_28 / A negatively charged rubber rod was brought near some small pieces of paper. The…

Problem

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question

A negatively charged rubber rod was brought near some small pieces of paper. The rod's charges repelled the negative charges in the pieces. Which of the following caused the repulsion of the negative charges?

choices

  • conduction
  • gravitation
  • induction
  • insulation

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Source and history

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