# Thermistors calculation of base resistance

#### physocs1

Using the regression eqn. Find the base resistance of the thermistor.
Find the temp. Of the boiling water using this eqn.

Y=1.54e^-0.059x

How do I go about solving this problem

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#### Baluncore

Is this homework?

Plot the equation for temperatures from 0 to 100°C and study it's shape.

What is meant by the base resistance of the thermistor?
Is Y the resistance?
Is x the temperature?
What was the thermistor resistance when in the boiling water?

Can you put the resistance into the equation?

#### physocs1

The resistance value of a thermistor at a specified temperature with negligible electrical power to avoid self heating. Usually base resistance will be defined at 25 °C.
Its a NTC looking shape
I think Y is resistance
X is temp.
Not sure

At 100C: R= 0.08

Could I plug in 25 C and solve for Y?? .

#### Baluncore

I think Y is resistance
X is temp.
Not sure
At 100C: R= 0.08
Could I plug in 25 C and solve for Y?? .
You need to find out for sure.
If x is resistance and y is temperature then you need to plug in the resistance to get the temperature.
R= 0.08 ohms is a very low resistance. It is so low that it would be very hard to measure accurately.
You cannot build a reliable answer if you cannot be sure of the numbers and the units.

"Thermistors calculation of base resistance"

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