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Uttarakhand PMT Uttarakhand PMT Solved Paper-2009

  • question_answer
    Two similar hearer coils separately take 10 min to boil a certain amount of water. If both coils are connected in series, rime taken to boil the same amount of water will be

    A)  15 min        

    B)  20 min

    C)  7-5 min        

    D)  25 min

    Correct Answer: B

    Solution :

     When heaters are connected in series, the time taken to boil same amount of water will be \[={{t}_{1}}+{{t}_{2}}\] \[=10+10=20min\]


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