You are given 3 bulbs of 40 Watt, 60 watt and 100 watt. Which of these has lowest resistance???
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I can't understand this question
Aaravk85121:
i have to know which one has lowest resistance and how
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By using equation; P=V^2/R
Assuming that voltage of three bulbs are same
40=V^2/R ------------1
60=V^2/R ------------2
100=V^2/R -----------3
As power is inversely proportional to resistance therefore higher watt has lower resistance so the 100 watt bulb has lower resistance.
I HOPE THIS WILL HELP U
Assuming that voltage of three bulbs are same
40=V^2/R ------------1
60=V^2/R ------------2
100=V^2/R -----------3
As power is inversely proportional to resistance therefore higher watt has lower resistance so the 100 watt bulb has lower resistance.
I HOPE THIS WILL HELP U
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