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

  • question_answer A 220 volt and 800 watt electric kettle and three 220 volt and 100 watt bulbs are connected in parallel. On connecting this combination with 220 volt electric supply, the total current will be                                    [MP PMT 1975]

    A)            0.15 ampere                         

    B)            5.0 ampere

    C)            5.5 ampere                           

    D)            6.9 ampere

    Correct Answer: B

    Solution :

                       Total power \[P=(800+3\times 100)\]            Also \[P=Vi\] Þ \[1100=220\times i\] Þ \[i=5A\]


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