The resistance of two lamps is in the ratio 4:5. What will be the ratio of their wattage?
Answers
Answered by
7
P=VI=V^2/R.so the answer is 5 : 4
Answered by
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Given that,
Ratio of resistance of two lamps is 4:5.
To find,
The ratio of their powers.
Solution,
The relation between power and resistance of electrical equipment is given by :
So,
We have,
It means,
So, the ratio of powers of two lamps is 5:4.
Learn more,
Electric power
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