0
What else can I help you with?
What is the purpose for finding temperature coefficient of resistance?
to investigate change in resistance as temperature is varied
What is the relationship between resistance and temperature?
• ntc 'negative temperature coefficient': its resistance decreases as the temperature increases• ptc 'positive temperature coefficient': its resistance increases as the temperature increases
How does voltage and current affect resistance?
No, resistance is not affected by either voltage or current. Reading the various answers to similar questions on this topic, there seems to be a misunderstanding of Ohm's Law in which people think that, because R = V/I, then a change in either voltage or current must cause a change in resistance. This is most definitely not the case. This is because resistance is the constant of proportionality in the equation. The equation, quoted, merely tells us what the resistance of the circuit happens to be for a given ratio of voltage and current.Resistance is only affected by the length, cross-sectional area, and resistivity of the conductor. Because resistivity is affected by temperature then, indirectly, temperature also affects resistance. So, if the current flowing through a conductor causes its temperature to change, then so, too, will its resistance -but, it is the temperature that is causing the change in resistance, not the current.
Is a Resistor a nonlinear device?
It is a linear device if it is not a wire wound resistor. These become non linear to AC at high frequencies because of their inherent inductance.
What are two things that can change the amount of current that flows?
voltage and resistance There is also temperature.
How does an electrical thermometer works?
An electrical thermometer works by measuring changes in electrical resistance as temperature changes. This change in resistance is then converted into a temperature reading. The resistance of the sensor in the thermometer varies with temperature, allowing for accurate temperature measurements.
What are the electrical characteristics of a thermistor?
Varies its resistance with regard to temperature.
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.
What is the effect of the temperature on the resistance?
It varies. On some items resistance goes up, some it goes down when temperature goes up.
What is a air temp sensor?
IAT air intake sensor is a thermistor ( a resistor that varies the value of it's resistance in accordance with temperature changes ) the change in the resistance values will directly effect the voltage signal from the sensor to the PCM/ECM. As the sensor temperature increases, the resistance values will decrease. As the sensor temperature decreases the resistance values will increase.
What is the purpose for finding temperature coefficient of resistance?
to investigate change in resistance as temperature is varied
Is there any change in resistance of carbon composition resistor due to change in temperature?
yes, calculate it from temperature coefficient of resistance.
How does resistance of metal vary with temperature?
The resistance of metals generally increases with temperature due to increased atomic vibrations that impede the flow of electrons. This relationship is described by the temperature coefficient of resistance, which varies for different metals.
Is resistance inversely or directly proportional to temperature?
In most materials, resistance is directly proportional to temperature. This means that as temperature increases, resistance also increases. This relationship is described by the temperature coefficient of resistance, which varies for different materials.
What is the resistance to temperature change?
Heat Capacity
How does a graduated cylinder account for the volume change due to temperature change?
They have excellent chemical high resistance. They also have better resistance to temperature changes.
What is the relationship between resistance and temperature?
• ntc 'negative temperature coefficient': its resistance decreases as the temperature increases• ptc 'positive temperature coefficient': its resistance increases as the temperature increases
