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(Intro to thermodynamics heat transfer and fluids) If an electric motor had an efficiency of 100...

(Intro to thermodynamics heat transfer and fluids)

If an electric motor had an efficiency of 100 percent the it would not get warmer that the ambient temperature when it runs?

If true explain why

If false explain why

engineering   Mechanical-Engineering   
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Answer #1

Answer:

True.

Reason: If electric motor getting warmer means, Some of input energy is converted in the form of heat while running. That means all the input energy is not used to get desired work. In that case the efficiency will not be 100%. So if an electric motor giving 100% efficiency, Then it would never get warmed. Hence the given statement is correct.

=================Good Luck===================

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