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

  • question_answer If two bulbs of wattage 25 and 30, each rated at 220 volts, are connected in series with a 440 volt supply, which bulb will fuse [MP PET 2000]

    A)            25 W bulb                              

    B)            30 W bulb

    C)            Neither of them                 

    D)            Both of them

    Correct Answer: A

    Solution :

      In series,  \[{{P}_{Consumed}}\propto \frac{1}{{{P}_{Rated}}}\propto {{V}_{Applied}}\] i.e. more voltage appears on smaller wattage bulb, so 25 W bulb will fuse

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