JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Self Evaluation Test - Current Electricity

  • question_answer
    Forty electric bulbs are connected in series across a 220 V supply. After one bulb is fused the remaining 39 are connected again in series across the same supply. The illumination will be

    A) more with 40 bulbs than with 39

    B) more with 39 bulbs than with 40

    C) equal in both the cases

    D) in the ratio \[{{40}^{2}}:{{39}^{2}}\]

    Correct Answer: B

    Solution :

    [b] Since, the voltage is same for the two combinations, therefore\[H\propto \frac{1}{R}\]. Hence, the combination of 39 bulbs will glow more.


You need to login to perform this action.
You will be redirected in 3 sec spinner