1. Refer to the following figure to calculate the emitter and collector currents for each temperature shown. 

2. Calculate the output voltage and collector-emitter voltage for each temperature shown in the following Figure. 

3. Plot a graph of the thermistor temperature characteristic versus output voltage. 

4. Draw the transistor characteristic curves for each temperature with the DC load line and determine each operating point

5. Discuss if the design of this circuit is good or not (linearity) 

6. To which temperature values will this circuit will be linear?

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(m) 111 R₁ 4.7 ΚΩ RTherm (a) Circuit +9 V R₂ 1 kn 2₁ -O VOUT 2N3904 R3 • 470 Ω TEMPERATURE, C 60 65 70 75 80 THERMISTOR RESISTANCE, ΚΩ 1.256 1.481 1.753 2.084 2.490 (b) Temperature characteristic of the thermistor for the specified range (m) 111 R₁ 4.7 ΚΩ RTherm (a) Circuit +9 V R₂ 1 kn 2₁ -O VOUT 2N3904 R3 • 470 Ω TEMPERATURE, C 60 65 70 75 80 THERMISTOR RESISTANCE, ΚΩ 1.256 1.481 1.753 2.084 2.490 (b) Temperature characteristic of the thermistor for the specified range