JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors Question Bank Heating Effect of Current

  • question_answer A coil takes 15 min to boil a certain amount of water, another coil takes 20 min for the same process. Time taken to boil the same amount of water when both coil are connected in series                                  [DCE 2005]

    A)            5 min                                       

    B)            8.6 min

    C)            35 min                                     

    D)            30 min

    Correct Answer: C

    Solution :

               Time \[{{t}_{S}}={{t}_{1}}+{{t}_{2}}=35\,\,\min .\]

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