Problem

a. Find the resistance of the thermistor having the characteristics of Fig. 3.36 at −50°C,...

a. Find the resistance of the thermistor having the characteristics of Fig. 3.36 at −50°C, 50°C, and 200°C. Note that it is a log scale. If necessary, consult a reference with an expanded log scale.


b. Does the thermistor have a positive or a negative temperature coefficient?


c. Is the coefficient a fixed value for the range −100°C to 400°C? Why?


d. What is the approximate rate of change of ρ with temperature at 100°C?

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