Question

Three electrie bulbs of
25W, 60W and 100W are
connected in series to AC
mains. Which bulb glows
brighter?
A) 25 W bulb
B) 60 W bulb
C) 100 W bulb
D) All bulbs glow equally
bright​

Answer 1

Answer:

100 w bulb ( c)

80W Bulb (1) will glow brighter and bulb (2) of 100W will dimmer in series connection. In short, In series, both bulbs have the same current flowing through them. The bulb with the higher resistance will have a greater voltage drop across it and therefore have a higher power dissipation and brightness