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NEET Sample Paper NEET Sample Test Paper-87

  • question_answer
    A circular coil ABCD carrying a current i is placed in a uniform magnetic field. If the magnetic force' on the segment AB is \[\overrightarrow{F},\] the force on the remaining segment BCDA is

    A) \[\overrightarrow{F}\]                 

    B)        \[-\overrightarrow{F}\]

    C) \[3\overrightarrow{F}\]                           

    D) \[-3\overrightarrow{F}\]

    Correct Answer: B

    Solution :

    [b] Here, \[{{\overrightarrow{F}}_{AB}}+{{\overrightarrow{F}}_{BCDA}}=\overrightarrow{0}\] \[\Rightarrow {{\overrightarrow{F}}_{BCDA}}=-{{\overrightarrow{F}}_{AB}}=-\overrightarrow{F}\] \[(\therefore {{F}_{AB}}=\overrightarrow{F})\]


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