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Temperature resistors, commonly known as thermistors or resistance temperature detectors (RTDs), can be used in a variety of applications, including HVAC systems for climate control, industrial processes for temperature monitoring, and automotive systems for engine temperature regulation. They are also utilized in consumer electronics, such as thermostats and appliances, to maintain optimal operating conditions. Additionally, they play a crucial role in medical devices, like incubators and patient monitoring systems, ensuring precise temperature management.
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Do resistors resist differently under different temperatures?
Yes.Most high quality resistors has got a sixth band of colour.This band indicates Temperature Coefficient in PPM (Parts per million).These resistors typically only rise in value within their specified range of temperature.Note:All resistors vary slightly whether they are marked with temperature coefficient or not. Those unmarked colorful resistors typically have a TC of 200 PPM or more. The problem with the unmarked resistors is also that we do not know exactly how they behave when being exposed to higher temperature. Most will have increased values. Some will have decreased values. Others will have a combination of these for different temperatures.Color codes used on resistors are:(Look at related question below for a full explanation of these, including calculating temperature drift.)Colour valueMultiplierToleranceTemperature CoefficientSilver 0,01Silver 10%Gold 0,1Gold 5%Black 01Brown 1101%100ppmRed 21002%50ppmOrange 31k15ppmYellow 410k25ppmGreen 5100k0,50%Blue 61M0,25%Violet 710M0,10%Gray 80,05%White 9
How sensitive is 22k resistor?
"Sensitivity" is not a word normally applied to resistors. Characteristics of resistors include "resistance", "tolerance", "power rating", and "temperature coefficient". "Inductance" and "capacitance" are also used in describing certain critical performance resistors. A 22 KOhm resistor will require 22 v of voltage to induce a current of 1 ma. This is Ohm's Law: voltage = current times resistance.
What metals are used for precision resistors?
Precision resistors typically use metals such as nickel, copper, and manganin due to their stable resistance characteristics and low temperature coefficients. Additionally, alloys like nickel-chrome and nickel-iron are commonly employed for their excellent stability and resistance to corrosion. These materials ensure that the resistors maintain accuracy and reliability over a range of temperatures and conditions.
What are the types of carbon film resistors?
Carbon film resistors come in several types, primarily differentiated by their construction and performance characteristics. The most common types include standard carbon film resistors, which offer good stability and low noise, and high-precision carbon film resistors, designed for applications requiring tighter tolerances. Other variations include low-temperature coefficient (LTC) carbon film resistors, which minimize changes in resistance with temperature, and power carbon film resistors, built to handle higher power ratings. Each type is suited for different applications based on factors like accuracy, stability, and power handling capabilities.
What is the advantage of film resistors over carbon resister?
Film resistors have lower noise than carbon resistors.
What is carbon composition?
Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.
What do thermisters do?
Thermistors are temperature-sensitive resistors that change resistance with temperature. They are commonly used in electronic devices for temperature measurement and control. Their resistance can be used to calculate the temperature of the surrounding environment.
What are those materials of resistors?
most of the resistors commonly used are carbon resistors
What is carbon composition resistors?
Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.
Why are alloys constantan and Manganin used to make standard resistors?
Constantan and Manganin have low temperature coefficients of resistance, meaning their resistance remains relatively stable over a wide range of temperatures. This makes them ideal for use in standard resistors where a consistent and precise resistance value is required. Additionally, both alloys have high resistivity, which allows for the creation of resistors with higher resistance values in a compact size.
What are resistors and why are they used?
Resistors are like funnels, they restrict the flow of current.
Why resistors are connecting?
resistors are used to resist the flow of current in a circuit.......
What are advantages of a series combination of resistors?
parallel combination of resistors are used in house circuits
How does a thermometer measure temeperature?
Mercury (the red liquid) is used in many older thermometers because it is the only metal which is liquid at room temperature and expands uniformly as the temperature increase. Thus, as the temperature rises and falls the mercury rises and falls inside of the thermometer and gives us a reading as to what temperature it is. Most electronic thermometers used are called thermo-resistors. These types of thermometers use semiconductors that act as temperature sensitive resistors. The colder it is, the less conductive the semiconductor is. A computer measures the conductivity of the metal and determines the temperature based on the resistance of the semiconductor.
How does temperature affect power rating of carbon resistors?
Its normal power rating is at room temperature. For a temperature of 75 degrees, halve the rating.
Do resistors resist differently under different temperatures?
Yes.Most high quality resistors has got a sixth band of colour.This band indicates Temperature Coefficient in PPM (Parts per million).These resistors typically only rise in value within their specified range of temperature.Note:All resistors vary slightly whether they are marked with temperature coefficient or not. Those unmarked colorful resistors typically have a TC of 200 PPM or more. The problem with the unmarked resistors is also that we do not know exactly how they behave when being exposed to higher temperature. Most will have increased values. Some will have decreased values. Others will have a combination of these for different temperatures.Color codes used on resistors are:(Look at related question below for a full explanation of these, including calculating temperature drift.)Colour valueMultiplierToleranceTemperature CoefficientSilver 0,01Silver 10%Gold 0,1Gold 5%Black 01Brown 1101%100ppmRed 21002%50ppmOrange 31k15ppmYellow 410k25ppmGreen 5100k0,50%Blue 61M0,25%Violet 710M0,10%Gray 80,05%White 9
Where is the resistor used?
The resistors are mainly used to reduce the current
