KVPY Sample Paper KVPY Stream-SX Model Paper-31

  • question_answer
    In the circuit shown in figure, a conducting wire HE is moved with a constant speed v towards left. The complete circuit is placed in a uniform magnetic field\[\overrightarrow{B}\] perpendicular to the plane of circuit inwards.
    The current in HKDE is:

    A) clockwise

    B) anticlockwise

    C) alternating

    D) zero

    Correct Answer: D

    Solution :

    Potential difference across capacitor \[v=Bvl=cons\tan t\] Therefore, charge stored in the capacitor is also constant. Thus, current through the capacitor is zero.


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