Current Electricity Charging Discharging Of Capacitors Question 490
Question: Three light bulbs of 40 W, 60 W and 100 W are connected in series with 220 V source. Which one of the bulbs will glow brightest
[MP PMT 1995; UPSEAT 2002; BCECE 2005]
Options:
A) 40 W
B) 60 W
C) 100 W
D) All with the same brightness
Show Answer
Answer:
Correct Answer: A
Solution:
In series $ P _{Consumed}\propto \text{Brightness}\propto \frac{1}{P _{Rated}} $
BETA
