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NEET Sample Paper NEET Sample Test Paper-15

  • question_answer
    A rectangular loop carrying a current I is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If a steady current / is established in the wire as shown in the figure, the loop will:

    A)  rotate about an axis parallel to the wire.

    B)  move away from the wire.

    C)  move towards the wire.

    D)  remain stationary.

    Correct Answer: C

    Solution :

    There will be no force on the loop due to horizontal current carrying wires because forces acting on these wires will be equal and opposite. Further\[{{F}_{AD}}>{{F}_{BC}}.{{F}_{AD}}\] is directed towards left hand side and \[{{F}_{BC}}\]towards right hand side (according to right hand rule). Hence, the correction option is [c].


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