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  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    Which one of the following is an electric device, that prevents electric fire and damage to electrical appliances, due to excessive flow of current during short circuit?

    A) Switch

    B) Fuse

    C) Conducting wires

    D) Bulbs

    E) None of these

    Correct Answer: B

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