Conducted an experiment: measured freezing and boiling points with following the

Question

Conducted an experiment: measured freezing and boiling points with following thermometers: platinum resistance, thermocouple, uncalibrated thermometer, thermistor. It turned out that all of them are directly proportional to temperature . How should i explain? Q=I^2 RT ? Conducted an experiment: measured freezing and boiling points with following thermometers: platinum resistance, thermocouple, uncalibrated thermometer, thermistor. It turned out that all of them are directly proportional to temperature . How should i explain? Q=I^2 RT ?

Explanation / Answer

Joules law states that the heat produced in a conductor by a constant current

is equal to the product of the square of the current and resistance of the

conductor and duration of time the current passes that is

Q=I2RT

Explanation:

Resistance is directly proportional to heat produced

i.e R ? H.

We know power P=Q/T

And also P=I2R

I2R=Q/T

I2RxT=Q

Q=I2RT

Therefore Q=I2RT

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