Psychology, asked by deehdhaggupur2005, 19 days ago

Find the ratio of the resistance of two lamps of 220V_60W and of 110V-60W

Answers

Answered by girlherecrazy

2

Answer:

Explanation:

From the equations

U=RI and P=UI

R=UI=U2P

For the first light bulb

R1=220260=806.7Ω

For the second light bulb

R2=11026=2016.7Ω

The ratio

R1R2=806.72016.7=0.4

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