out of the following bulbs rated 40 watt ,220 watt, 60 watt, 220 volt ,and 100watt ,220 volt, which one will glow the brightest when connected in series to a supply of 220 volt?
Answers
Answer:
HOPE IT HELPS. !!!!!!!.
Explanation:
Resistance= (voltage)^2/Power
Resistance of 40 W bulb= (200)^2/40=1000 ohm
Resistance of 60 W bulb=(200)^2/60=666.67 ohm
Resistance of 100 w bulb=(200)^2/100=400 ohm
Total resistance= 1000+666.67+400=2066.67 ohm( addition because series circuit)
Now, we calculate current flowing in the bulbs( as we know this is series circuit so same current will flow in the circuit)
Current (I)= Voltage/total resistance=200/2066.67=0.0967 A
Now we find the power consumed by each bulb,
power consumed by 40 W bulb=I^2R=(0.0967)^2*1000=9.35 W
Power consumed by 60 W bulb=I^2*R=(0.0967)^2*666.67=6.23 W
Power consumed by 100 W bulb=I^2R=(0.0967)^2*400=3.74 W
From above results, we can say that power consumed by 40 W bulb is more as compared to other bulbs so 40 W glows more brighter than other bulbs.
Conclusion:- In series connection, Which bulb has high resistance which glows more brighter.
Answer:
from above result we can say that 40W bulb is glow more brighter than other bulbs
