What is IV characteristics of thermistor?

I-V graph for Thermistor For the thermistor, its resistance reduces with the temperature. In case of Thermistor, at higher voltage range when current flow becomes higher the temperature of the conductor also rises, but in this case this reduces the resistance of the thermistor.

What is the main function of a thermistor?

Thermistors are thermally sensitive resistors whose prime function is to exhibit a large, predictable and precise change in electrical resistance when subjected to a corresponding change in body temperature.

What is the description of thermistor?

Definition of thermistor : an electrical resistor making use of a semiconductor whose resistance varies sharply in a known manner with the temperature.

What is the objective of thermistor experiment?

A simple low-cost experiment for undergraduate students to determine the characteristics of a negative temperature coefficient of resistance thermistor is presented. The experiment measures the resistance–temperature and voltage–temperature characteristics of the thermistor.

What is B value of thermistor?

A thermistor’s “b” value, or beta value, is an indication of the shape of the curve representing the relationship between resistance and temperature of an NTC thermistor.

What are the applications of thermistor?

Common Thermistor Applications Thermistors are used as temperature sensors. They can be found in every day appliances such as fire alarms, ovens and refrigerators. They are also used in digital thermometers and in many automotive applications to measure temperature.

What is activation energy of thermistor?

APPARATUS :- Thermistor, Thermometer ( 0 to 100 degree C.),Heating arrangement to heat the thermistor, Rheostat, Voltmeter, Milli-Ammeter, Fixed voltage source. FORMULA:-Activation energy Eg = 0.396 m eV, where m is the slope of the straight line plot obtained for log10 R and 1/T.

What are PTC and NTC with examples?

For example: – A 10k NTC thermistor displays 10k ohm resistance at 25°C and has a negative relationship between temperature and resistance. – A 100k PTC thermistor displays 100k ohm resistance at 25°C and has a positive temperature-resistance relationship.

What does a thermistor look like?

A thermistor is a type of resistor whose resistance is reliant on temperature; it’s a resistance thermometer. They’re made from metallic oxide which is moulded into a bead, disk, or cylindrical shape and then enclosed with epoxy or glass. Thermistors are easy to use, relatively cheap, and durable.