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  3. Chhattisgarh PMT

Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    Four wires each of length 2.0 n are bent into four loops P, Q, R and S and then suspended into uniform magnetic field. Same current is passed in each loop. Which statement is correct?

    A)  Couple on loop P will be the highest

    B)  Couple on loop Q will be the highest

    C)  Couple on loop R will be the highest

    D)  Couple on loop S will be the highest

    Correct Answer: D

    Solution :

    \[\therefore \] Couple \[\tau =BIA\] For given measurements only area of circle will  be maximum and therefore torque will be maximum. Hence, couple on loop S will be highest.


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