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What is the current in a 75 W light bulb that is plugged into 120 V household outlet?
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1 vote
What is the current in a 75 W light bulb that
is plugged into 120 V household outlet?

User Sukumar
by
8.9k points

2 Answers

3 votes
P=VI
75=240*I
L=75 / 240
I rms =0.3125 A
User Dan Klos
by
8.6k points
3 votes

Power = (voltage) x (current)

Divide each side by (voltage):

Current = (power) / (voltage)

I = (75) / 120 = 0.625 Amperes = 625 mA


User Anuvrat Tiku
by
8.4k points
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