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 stationary charged particle in a magnetic field does not experience a force.
    REASON: The force acting on a charged particle does not depend on velocity of the particle.

    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: C

    Solution :

    The force experienced by a particle, carrying the charge +q and moving with a velocity v in a magnetic field with its velocity perpendicular to the field is given by \[F=qvB\]. If v =0, then also F = 0, i.e. a stationary charged particle in a magnetic field does not experience a force.


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