Question

what is Thermistor????

Answer 1

Thermistors are one of the most commonly used devices for the measurement of temperature. The thermistors are resistors whose resistance changes with the temperature. While for most of the metals the resistance increases with temperature, the thermistors respond negatively to the temperature and their resistance decreases with the increase in temperature. Since the resistance of thermistors is dependent on the temperature, they can be connected in the electrical circuit to measure the temperature of the body....

Answer 2

Hey friend!!!

Thermistor: Thermally sensitive resistor.
R = [R° * (1 + alpha t) ]
alpha = very large
These are very sensitive to the heat flow.They have high coffecient of resistance.These are used to control current in the circuits. Also used in the detection of small temperature differences.
Hope it helps...