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13. Which of the following statements regarding a thermistor is true? A. It must have a negative temperature befficient. B. It is not a

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13. Which of the following statements regarding a thermistor is true? A. It must have a negative temperature befficient. B. It is not a transducer. C. It is an example of a nonlinear resistor. D. It can change resistance in response to changes in temperature. 14. A switch is used to turn on current to a large inductor. Which of the following would be connected across the switch to prevent arcing from causing contact damage? A. A PTC thermistor B. An NTC thermistor C. A resistor D. A Hall device 15. A has a specific polarity; one lead is always positive and one lead is always negative. A. photovoltaic cell B. capacitor C. photoresistor D. resistor

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