Only a small fraction of the electric energy fed into a common lightbulb is transformed into light. What happens to the rest?
To Explain: A small fraction of electric energy is transformed into light in a common light bulb.
Explanation of Solution
Introduction:
A bulb glows when current is passed through it. A light bulb contains a heating element which heats up and glows when current is passed through it.
A very less fraction of energy fed into a lightbulb is changed to light energy. The rest of the energy is transformed into heat energy. The filament gets heated up and then glows. As much as
Chapter 34 Solutions
Conceptual Physics: The High School Physics Program
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