Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2010

  • question_answer
    How much heat is produced by 1500 W heater in 7 min ?

    A)  1.5 kcal                               

    B)  15 kcal

    C)  150 kcal                              

    D)  1500 kcal

    Correct Answer: C

    Solution :

    Heat produced \[H=\frac{{{V}^{2}}t}{R\times J}cal\] \[H=\frac{P.t}{J}=\frac{1500\times 7\times 60}{4.2}\] \[=1.5\times {{10}^{5}}cal=150kcal\]


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