Haryana PMT Haryana PMT Solved Paper-2010

  • question_answer
    A battery is connected to a uniform resistance wire AB and B is earthed. Which one of the following graphs below shows how the current density J varies along AB?

    A)

    B)                  

    C)                                                                

    D)

    Correct Answer: D

    Solution :

                    Wire AB is uniform so current through wire AB at every point across section will be same.     Hence, current density \[j=(i/A)\] at every point of the wire will be same.


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