2. Sample Papers
  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Olympiad Model Test Paper-13

  • question_answer
    Application of electric bell is based on which one of the following effects of current?

    A) Heating effect

    B) Magnetic effect

    C) Chemical effect

    D) All of these

    E) None of these

    Correct Answer: B

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