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

  • question_answer
    Why the spring shrinks in Roger's spiral?

    A) The spring functions as a solenoid

    B) Due to force acting between two current carrying wires

    C) Due to magnetic effect of current

    D) Since the spring is soft

    Correct Answer: B

    Solution :

    Option [b] is correct Explanation: The spring shrinks due to force acting between two current carrying wires.


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