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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2012

  • question_answer
    Which of the following graphs correctly represents the variation of heat energy \[(U)\]produced in a metallic conductor in a given time as a function of potential difference \[\left( V \right)\] across the conductor?

    A)  

    B)  

    C)  

    D)  

    Correct Answer: D

    Solution :

    : According to Joules law of heating \[U=\frac{{{V}^{2}}}{R}t\] It shows that the graph between heat energy (U) and potential difference (V) is upwards parabola and is represented by option.


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