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

  • question_answer If a 2 kW boiler is used everyday for 1 hour, then electrical energy consumed by boiler in thirty days is [BHU 2004]

    A)            15 unit                                      

    B)            60 unit

    C)            120 unit                                   

    D)            240 unit

    Correct Answer: B

    Solution :

               Energy \[=P\times t\] = 2 ´ 1 ´ 30 = 60 kWH = 60 unit

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