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12th Class Physics Magnetism Question Bank Case Based (MCQs) - Magnetism and Matter

  • question_answer
    What are the main 3 components in a Roget's spiral?

    A) Mercury, AC voltage source

    B) Mercury, DC voltage source

    C) Mercury, DC voltage source, key

    D) Mercury, AC voltage source, key

    Correct Answer: C

    Solution :

    Option [c] is correct. Explanation: Mercury, DC voltage source, key is essential components for the Roget's spiral to work.


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