JEE Main & Advanced Sample Paper JEE Main Sample Paper-19

  • question_answer 44) Choose the wrong statement from the following

    A)  a metre bridge can be used to determine the emf of a primary cell

    B)  a metre bridge works on the principle of Wheatstone bridge

    C)  a potentiometer is used to compare the emfs of two primary cells

    D)  a millimeter can be used as an ohmmeter

    Correct Answer: A

    Solution :

     A metre bridge is used to determine the resistance of a given wire and not to determine the emfofa cell.

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