1. The two circuits shown below are taken from the lecture notes. Vs = 12V -P & R₁ Ov Vout V. OV R₂ R D The thermistor RT has a resistor Ro = 1k2 initially, and all other resistances have the same value of 1k02. When the temperature is raised slightly, the resistance decreases by an amount AR. a) If now, the position of RT is swapped with R2, deduce an expression for Vout for each case. (In the right picture, Vout = Vco). b) Make a plot of Vout vs T in case case. (T is assumed to be small).

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1. The two circuits shown below are taken from the lecture notes.
Vs = 12V
-t
R₂
R₁
ΙΚΩ
Ov
Vout
V
OV
32
The thermistor RT has a resistor Ro = 1k2 initially, and all other resistances have the same value
of 1k02. When the temperature is raised slightly, the resistance decreases by an amount AR.
a) If now, the position of RT is swapped with R2, deduce an expression for Vout for each case.
(In the right picture, Vout = VCD).
b) Make a plot of Vout vs T in case case. (T is assumed to be small).
Transcribed Image Text:1. The two circuits shown below are taken from the lecture notes. Vs = 12V -t R₂ R₁ ΙΚΩ Ov Vout V OV 32 The thermistor RT has a resistor Ro = 1k2 initially, and all other resistances have the same value of 1k02. When the temperature is raised slightly, the resistance decreases by an amount AR. a) If now, the position of RT is swapped with R2, deduce an expression for Vout for each case. (In the right picture, Vout = VCD). b) Make a plot of Vout vs T in case case. (T is assumed to be small).
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