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Physics, 16.04.2020 04:54 aarionna8

You buy a 75-W lightbulb in Europe, where electricity is delivered at 240 V.

If you use the bulb in the United States at 120 V (assume its resistance does not change), how bright will it be relative to 75-W 120-V bulbs?

Assume that brightness is proportional to power consumption.

a.2.5 X 10^-1

b.1.0

c.7.7 X 10^2

d.19

e.4.0

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You buy a 75-W lightbulb in Europe, where electricity is delivered at 240 V.

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