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JEE Main & Advanced Sample Paper JEE Main Sample Paper-37

  • question_answer
    Two potentiometers A and B having 4 wires and 10 wires, each having \[100\text{ }cm\] in length are used to compare e.m.f. of 2 cells. Which one will give a larger balancing length?

    A)  Balancing length doesn't depend on the total length of the wire.

    B)  Both A and B will give same balancing length

    C)  Potentiometer B

    D)  Potentiometer A

    Correct Answer: C

    Solution :

     Larger the length, lesser will be the potential gradient, so more balancing length will be required.  


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