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Which one is having lesser resistance, a...

Which one is having lesser resistance, a 60W bulb or a 40W bulb?

Text Solution

Verified by Experts

Power `(P) = (V^2)/(R ) therefore R prop 1/P`
if v is constant. Hence bulb of higher voltage will have less resistance. In other words, resistance of 60W bulb is less than the resistance of 40W bulb.
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