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if two bulb of 50w &30w apply in series having 230v the
which bulb glow bright ,why
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Answer Posted / nitin narwal
bulbs or any domestic electrical equipments are designd for
constant voltage,thats why we have parallel connections at
home.and r designd for the formula given below intentionally
we know that p=v^2/r
now p is inversely proportional to r
now we can easily tell 50w bulb will have less resistance
than 30w bulb
now in series, current in both will same,,,,,,so by formula
p=i^2R,,,,,
we can say 30w bulb will glow brighter
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