Answer to Question #97621 in Electric Circuits for Tiua

Question #97621
Calculate the energy released in joules from a 3v battery that operates a light bulb. The current flowing through the light bulb is 0.60 A and the bulb is left on for only 30s
1
Expert's answer
2019-10-31T11:10:50-0400

Energy is power times time. the power can be found as:


"P=UI."

Then the energy will be


"E=Pt=UIt=3\\cdot0.6\\cdot30=54\\text{ J}."


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