How many 100-w lightbulbs connected to 120v

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How many 100-W lightbulbs connected to 120V can be used without blowing a 15-A fuse?

I = P/V

I = 100W/120V = .8A

I divided 15 A by .8 A to equal 18.75; therefore, you could use 18 bulbs.

Reference no: EM13960835

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