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  3. Chhattisgarh PMT

Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2004

  • question_answer
    Heat produced in a wire of resistance R due to current flowing at a constant potential difference is proportional to

    A)  1/R2                                     

    B)  1/R

    C)  R                                           

    D)  R2

    Correct Answer: B

    Solution :

    \[H=\frac{{{V}^{2}}t}{R}\] \[\because \] V is constant \[\therefore \] For constant time \[H\propto \frac{1}{R}\]


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