The unknown resistance Ru of a thermistor is to be measured by a bridge circuit of the form shown in Fig. 6.5, but where the bridge components and the excitation voltage are different from the values...

The unknown resistance Ru of a thermistor is to be measured by a bridge circuit of the

form shown in Fig. 6.5, but where the bridge components and the excitation voltage

are different from the values shown in Fig. 6.5, having instead the following values:

R1 ¼ 100 U; R2 ¼ 1000 U; R3 ¼ 1000 U; Vi ¼ 10V; Rm ¼ 10K U

The resistance (Ru) of the thermistor is related to the measured temperature (T) in

degrees kelvin (K) according to the following expression:

Ru ¼ 1000 exp

36751

T 0:003354

Draw a graph of the bridge output in volts for values of the measured temperature in

steps of 5C between 0C and 50C.