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6 December, 18:42

A CFL bulb has an efficiency of 8.9% and a power of 22 W. How much light energy does the lightbulb produce in 1 second

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  1. 6 December, 21:02
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    The power that the light is able to utilize out of the supply is only 0.089 of the given.

    Power utilized = (0.089) (22 W)

    = 1.958 W

    = 1.958 J/s

    The energy required in this item is the product of the power utilized and the time. That is,

    Energy = (1.958 J/s) (1 s) = 1.958 J

    Thus, the light energy that the bulb is able to produce is approximately 1.958 J.
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