DUMET Medical DUMET Medical Solved Paper-2011

  • question_answer
    A 1250 W heater operates at 115 V. What is the resistance of the heating coil?

    A)  1.6\[\Omega \]           

    B)  13.5\[\Omega \]

    C)  1250\[\Omega \]         

    D)  10.6\[\Omega \]

    Correct Answer: D

    Solution :

    Given, \[V=115\,V\] and \[P=1250\,W\] We know, \[R=\frac{{{V}^{2}}}{P}\] So, \[R=\frac{{{(115)}^{2}}}{1250}\] \[=10.58\,\,\Omega \] \[R=10.6\,\,\Omega \]


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