You have two electric lamps having rating 40 W 220 V and 60 W, 220 V. Which of the higher resistance? Give reason for your answer. If these two lamps are connected to a source of 220 V, which will glow brighter?
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Verified answer
Explanation:
please make me Brainlist answer and follow me
Explanation:
P=V^2/R
R=V^2/P
R1=220^2/60=80.67ohm
R2=220^2/40=1210ohm
R=(806.67×1210)/(806.67+1210)
= 484ohm
I = 220/484
= 0.45 A
Hence, the current drawn from 220V is 0.45A.
Hence, The resistance of the first lamp is high.
Hence, The lamp having less resistance will glow brighter, that is lamp 2.
Hii
Thanks for thanks ^^
btw us ans m 120x ki jagah 360x hoga