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

  • question_answer Three bulbs of 40W, 60W and 100W are arranged in series with 220V. Which bulb has minimum resistance [AFMC 2001]

    A)            40W                                         

    B)            60W

    C)            100W                                       

    D)            Equal in all bulbs

    Correct Answer: C

    Solution :

                       \[P=\frac{{{V}^{2}}}{R}\Rightarrow R\propto \frac{1}{P}\] So resistance of the 100W bulb will be minimum


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