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CMC Medical CMC-Medical Ludhiana Solved Paper-2009

  • question_answer
    A battery of emf 10 V and internal resistance 3 n is connected to a resistor. The current in the circuit is 0.5 A. The terminal voltage of the battery when the circuit is dosed is

    A)  10 V                                     

    B)  0 V

    C)  1.5 V                                    

    D)  8.5 V

    Correct Answer: D

    Solution :

                     Terminal voltage of the battery after closing the circuit is \[V=E-ir\] \[=10-0.5\times 3\] \[=10-1.5\] \[=8.5\,V\]


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