12th Class Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Assertion And Reason (MCQs) - Moving Charges and Magnetism

  • question_answer
    ASSERTION: A moving coil galvanometer is based on heating effect of current.
    REASON: On heating, the coil starts to rotate in moving coil galvanometer.

    A) If both assertion and reason are true and reason is the correct explanation of assertion.

    B) If both assertion and reason are true and reason is not the correct explanation of assertion.

    C) If assertion is true but reason is false.

    D) If both assertion and reason are false.

    E) If assertion is false but reason is true.

    Correct Answer: D

    Solution :

    A moving coil galvanometer is based on magnetic effect of current. A force acts on every side of the coil due to magnetic field when current is passed through the coil. Due to these forces, a couple is exerted on the coil.


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