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Asked by Jason

a 75 w compact fluorescent bulb operating at 30% efficiency. Calculate the amount of energy lost to heat and the amount of energy converted into light after the bulb has been on for 2.0h.
10 years ago

Answers

Answered by Damon
2*3600 seconds/h = 7200 seconds

75 * 7200 = 540,000 Joules total electricity use

.7 * 540,000 = heat Joules
.3 * 540,000 = light Joules
10 years ago

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