Two lamps rated 100W,220V and 60W,220V are connected in parallel.which lamp consumes more energy and which gives more brightness? Find the resistance of each lamp
Plzzz answer quickly
Answers
Answered by
0
60 w consume more power and 100 w gives more brightness
Answered by
4
as both the lamps are in parallel so, lamp rated 100 w consumes more enegy and bright lighter as compare to the lamp of 60 w beacuse it has more rating
To find the resistance of both lamps,
1st lamp, P= V^2 /R 100w=220*220/R R = 220*220/100 R= 484 ohm 2nd lamp, P= V^2/ R 60= 220*220/R R = 220*220 /60 R= 806.6 ohm
To find the resistance of both lamps,
1st lamp, P= V^2 /R 100w=220*220/R R = 220*220/100 R= 484 ohm 2nd lamp, P= V^2/ R 60= 220*220/R R = 220*220 /60 R= 806.6 ohm
Similar questions