When a portable fan is first turned on it draws 4.25 AA. After it has come up to speed it draws 0.50 AA. Assuming the fan runs off a 120 VW outlet, calculate the back emf while the motor is running.

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When a portable fan is first turned on it draws 4.25 AA. After it has come up to speed it draws 0.50 AA. Assuming
the fan runs off a 120 W outlet, calculate the back emf while the motor is running.
Transcribed Image Text:When a portable fan is first turned on it draws 4.25 AA. After it has come up to speed it draws 0.50 AA. Assuming the fan runs off a 120 W outlet, calculate the back emf while the motor is running.
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