you have 9v battery, 1 kΩ resister and you need to shop online for a temperature "thing" to maximize ∆v of tem?
(meaning that sensitive "thing" what ever it is, it has to give the biggest voltage change ever when the temperature changes from 37 to 37.1c, you get to know from applying the information we have in the equation giving in the fact sheet of that "sensitive thing")
- 1 decade agoFavorite Answer
An NTC or a PTC. An NTC is a resistor with a negative temp. coefficient and a PTC the opposite. But wouldn't save on batteries if you would take a 10K resistor and a 10K PTC or NTC?