A physics teacher rubs a glass object and a felt cloth together and the glass becomes positively charged. Which of the following statements are true?

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1007663

2026-05-27 12:55

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  1. The glass gains electrons from the felt cloth, becoming negatively charged.
  2. Since the glass becomes positively charged, it loses electrons to the felt cloth.
  3. The transfer of electrons causes the glass to have a net positive charge.
  4. The friction between the glass and felt cloth leads to the exchange of charge, resulting in a net positive charge on the glass.

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