2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर

JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Heating Effect of Current

  • question_answer
    Some electric bulbs are connected in series across a 220 V supply in a room. If one bulb is fused then remaining bulbs are connected again in series across the same supply. The illumination in the room will                  [J & K CET 2004]

    A)            Increase                                    

    B)            Decrease

    C)            Remains the same                   

    D)            Not continuous

    Correct Answer: A

    Solution :

                       \[P=\frac{{{V}^{2}}}{R}\]  ÞÞ \[P\propto \frac{1}{R}\]     (V - constant) \ When one bulb will fuse out resistance of the series combination will be reduced. Hence from \[{{P}_{Consumed}}\propto \frac{1}{R}\] illumination will increase.


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