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NEET Sample Paper NEET Sample Test Paper-9

  • question_answer
    n identicals cells, each of emf and internal resistances are joining in series to form a closed circuits as shown. The potential difference across any one cells is:

    A)  zero                            

    B)  \[\varepsilon \]

    C)  \[\frac{\varepsilon }{N}\]                              

    D)  \[\frac{n-1}{n}\varepsilon \]

    Correct Answer: A

    Solution :

    For the combination, \[1=\frac{n\varepsilon }{nr}=\frac{\varepsilon }{r}.\] and \[V=\varepsilon -Ir=0\] (Because of closed loop)


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