Aprproximately how much electrical energy does a 5-W lightbulb convert to radiant and thermal energy in one hour

Energy, E = 18 kJ

Explanation:

Given that,

Power of the lightbulb, P = 5 W

We need to find the electrical energy produced by the lightbulb in one hour. We know that electric power is given by the electrical energy produced per unit time.

1 hour = 3600 seconds

Electric power :

or

E = 18 kJ

So, 18 kJ of electrical energy a 5-W lightbulb convert to radiant and thermal energy in one hour.

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