A fan is driven by an electric motor. Explain how adding a thermistor to the circuit would make the fan move faster when the room is warmer.

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asked Dec 6, 2017 188k views

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Tmaster · Answer 1 · 2017-12-13T09:37:57+0000

As the room becomes warmer, the temperature of the thermistor will increase as well. The resistance of thermistors reduces when their temperature increases; thus, the current to the motor will increase and the fan will run faster when temperature is increased.

A fan is driven by an electric motor. Explain how adding a thermistor to the circuit would make the fan move faster when the room is warmer.

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