a. Referring to Fig. 16.41, determine the current at which a 25°C sample of the material changes from a positive to a negative temperature coefficient. ( Figure 16.41 is a log scale.)
b. Determine the power and resistance levels of the device ( Fig. 16.41 ) at the peak of the 0°C curves.
c. At a temperature of 25°C, determine the power rating if the resistance level is 1 M.

Transcribed Image Text:

Power (mW) Resistance (2) 100 Ambient 0°C 10 25°C 60°C 1.0 0.1 0.1 10-7 10-6 10-5 10-4 10-3 Current (A) 10 801 0.1 Potential (V)