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JIPMER Jipmer Medical Solved Paper-1995

  • question_answer
    10 identical cells each of emf E and internal resistance r, are connected in series to form a            closed circuit. An ideal voltmeter connected across 3 cells will read:            

    A)              7E                             

    B)              13E           

    C)                     3E             

    D)                                     10E

    Correct Answer: A

    Solution :

    When 10 identical cells having emf E are connected in series, then their equivalent emf will be 10E. When a voltmeter is connected across 3 cells the voltmeter will read \[=10E-3E=7E\]


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