A thermistor is a solid-state ____ made from a semiconductor material that changes resistance as a function of temperature.
A. transducer
B. voltage regulator
C. conductor
D. variable resistor
Answer: D
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Which type of hammer is plastic coated, has a metal casing inside, and is filled with small lead balls?
A) Sledgehammer B) Plastic hammer C) Soft-blow hammer D) Dead-blow hammer
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Transformers that have a one-to-one ratio are known as _____.
a. autotransformers b. isolation transformers c. step-down transformers d. step-up transformers
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Using a single op amp, a capacitor, and resistors of 100 k? or less, design a circuit to implement  FIGURE 1.png)
Assume v? = 0 at t = 0.
What will be an ideal response?
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The heater circuit in a wide band oxygen sensor heats the sensor to about ________
A) 1,200 to 1,400°F B) 315°C C) 500°F D) 500 to 600°F
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