Two bulbs, one of 600W and the other of 100W having same
voltage rating are connected in series across the supply in a
room.Which bulb will glow brighter? If one of the bulb is
switched off, what will be effect on illumination?

Answer Posted / pradeep kumar

100 watts would glow
brighter..! Because both the
bulbs were connected in
series..
So current flowing through
both would be equal..
Power output(brightness)=
I^2*R..
The bulb with high power
rating has less resistance..
So 100watts bulb has high
resistance.. So 100 watts
bulb's power output would
be higher..!!

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