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Is potentiometer and Thermistor are variable resistors. How please explain?

A: A potentiometer is a manual device to change the resistance A thermistor changes as a function of environment temperature


How do you tell if a faulty thermistor?

While some people use a much more exhaustive and precise testing procedure, a very simple test can uncover the most common problems with a thermistor: * measure the resistance of the thermistor at room temperature with an ohmmeter. If this resistance is 0 (short) or infinity (open), then something is connected incorrectly or the thermistor has been destroyed. (These are the most common problems). If that test looks good, then a followup test can uncover nearly all the remaining possible problems with a thermistor: * put icewater in a ziplock bag and press it against the thermistor. Then measure the resistance of the themistor at freezing. The two measured values of resistance are usually adequate to identify what kind of thermistor it is. If both values are practically the same, then it's not really a thermistor -- perhaps someone has accidentally substituted a resistor. If one or both values are not the expected values, perhaps someone has accidentally substituted a different kind of thermistor.


What does a thermister do in a circuit?

A Thermistor Is essentially a variable resistor. The resistance of the thermistor changes with temperature. They're often used to regulate heating elements - like those found in cookers.


What is advantages of thermistor?

A thermistor an electrical resistor that resistance changes with temperature. There are two advantages of a thermistors one is it been more sensitive that the RTDÕs and thermocouples and two is has a quick response time.


When does a thermostor obey ohm's law?

I hope you mean the thermistor. If so,well it does not obey Ohms law. When current flows through the thermistor its temperature start increasing which reduces the resistance of the thermistor. A reduction in resistance at the same supply voltage will cause the current to increase. Thus it's not obeying Ohms law.

Related Questions

What is the symbol of thermistor?

The symbol of a thermistor is a resistor with an arrow pointing towards it.


What kind of thermometer has a thermistor at its end?

A RV absorption refrigerator uses a thermistor as a thermostat. The thermistor is moved up or down to regulate the refrigerator temperature.


What is the relationship between the resistance of a thermistor and temperature?

The resistance of a thermistor decreases as the temperature increases.


How can I test a dryer thermistor to determine if it is functioning properly?

To test a dryer thermistor, you can use a multimeter to measure its resistance. Disconnect the thermistor from the dryer and set the multimeter to the resistance setting. Place the multimeter probes on the thermistor's terminals and check the reading. Compare the reading to the manufacturer's specifications to determine if the thermistor is functioning properly.


How could you change the resistance of the thermistor?

You can modify the resistance of a thermistor by changing its temperature. As the temperature increases, the resistance of a thermistor decreases, and vice versa. By adjusting the surrounding temperature or applying heat or cooling, you can effectively change the resistance of the thermistor.


Is the resistance of a thermistor measured in degrees celsius?

No, the resistance of a thermistor is typically measured in ohms. The relationship between the resistance of a thermistor and temperature is nonlinear, and it is used to calculate the temperature of the thermistor in degrees Celsius.


What happens to a thermistor as it gets colder?

As a thermistor gets colder, its resistance increases. This is because the material in the thermistor contracts, reducing the number of charge carriers available for conduction, hence increasing resistance.


What is thermoresistive?

A thermistor is thermoresistive.


When the temperature increases thermistor resistance decreases?

Yes, that's correct. In a thermistor, which is a type of temperature-sensitive resistor, the resistance decreases as the temperature increases. This is because the conductivity of the thermistor material increases with temperature, causing the resistance to decrease.


What does a thermister do and how does it function in a circuit?

A thermistor is a type of resistor that changes its resistance with temperature. In a circuit, a thermistor is used to measure temperature by detecting the change in its resistance. When the temperature changes, the resistance of the thermistor changes, which can be measured and used to determine the temperature in the circuit.


Is potentiometer and Thermistor are variable resistors. How please explain?

A: A potentiometer is a manual device to change the resistance A thermistor changes as a function of environment temperature


How do you tell if a faulty thermistor?

While some people use a much more exhaustive and precise testing procedure, a very simple test can uncover the most common problems with a thermistor: * measure the resistance of the thermistor at room temperature with an ohmmeter. If this resistance is 0 (short) or infinity (open), then something is connected incorrectly or the thermistor has been destroyed. (These are the most common problems). If that test looks good, then a followup test can uncover nearly all the remaining possible problems with a thermistor: * put icewater in a ziplock bag and press it against the thermistor. Then measure the resistance of the themistor at freezing. The two measured values of resistance are usually adequate to identify what kind of thermistor it is. If both values are practically the same, then it's not really a thermistor -- perhaps someone has accidentally substituted a resistor. If one or both values are not the expected values, perhaps someone has accidentally substituted a different kind of thermistor.