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aleksandr82 [10.1K]
3 years ago
5

You operate a 120 w light bulb for 5 minutes. how much energy did you use?

Physics
1 answer:
timurjin [86]3 years ago
3 0

Answer:

Energy use by bulb = 36 kJ

Explanation:

Power of bulb = 120 W

Time of working = 5 minutes =5 x 60 = 300 seconds.

Power = Work / Time

Work = Power x Time

          = 120 x 300

          = 36000 J = 36 kJ

So. energy use by bulb = 36 kJ

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