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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt
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Defend the statement that 100% of the electrical energy

Chapter 10, Problem 34E

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QUESTION:

Defend the statement that 100% of the electrical energy that goes into lighting a lamp is converted to thermal energy. Are the first and the second laws of thermodynamics violated?

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QUESTION:

Defend the statement that 100% of the electrical energy that goes into lighting a lamp is converted to thermal energy. Are the first and the second laws of thermodynamics violated?

ANSWER:

Solution 34E This statement is trivially wrong. From everyday experience we can say that 100% of electrical energy the lamp gets does not convert to thermal energy. Because most of the energy does convert into light energy. The remaining energy gets converted into heat energy, some of the energy is lost due to the resistance of the wire and all. If all the energy gets converted into heat energy, the bulb will not be able to give a little bit

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