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Doctors Medicines MCQs Q&A

  1. An electron has a positive charge and a proton has no charge
  2. An electron has a positive charge and a proton has a negative charge
  3. An electron has a negative charge and a proton has a positive charge
  4. An electron has a negative charge and a proton has no charge
  5. None of the above
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1 Answers

Answer: Option 3

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