A capacitor is rated to operate in a certain temperature range. It is not designed to operate as a variable temperature device.
The temperature of a capacitor depends primarily on the ambient operating temperature around it plus the frequency of operation (no of charge / discharge per second). Normal electrolytic capacitors used in consumer electronics are rated from 85 degrees Celsius to 105 degrees Celsius.
The resistance of metals rises with increasing temperature. The resistance semiconducting materials falls with increasing temperature.
The reactance of a capacitor is a function of -- the capacitance of the capacitor -- the frequency of the voltage across the capacitor
Yes. One ice cube could cool to a lower temperature than another.
what is a watch capacitor answers
Yes. Anything remotely electronic is affected by temperature and humidity.
A: Capacitance vary directly with the area applied the bigger the area the bigger the capacitor. There is another element that will increase the size that is the rating of the capacitor voltage since more material will have to be used to insulate the plates
Yes it can vary in temperature because then it would never melt
from the temperature
It would vary depending, mainly, on ambient temperature
As temperature increase pressure will increase
Yes it does.
Capacitor values can vary by 30% or so, but not double. The larger cap would draw too much current, possibly overheating.
The capacitance value of a capacitor always changes a little as its temperature changes. Small ceramic units will be rated as 5% or 10% tolerance, and a big old electrolytic might have tolerances of -50% to +100% ! Usually, you don't really care what the exact value is, and the variation with temperature doesn't bother you. But there are design situations where you do need to know the exact value of the capacitor ... like maybe you're using it to generate a specific frequency that will then be multiplied a few hundred times in the system's later stages. Or at least you need to know how much the capacitor will change as the circuit gets warm. The temperature coefficient of a capacitor is a number that tells how much the capacitance value will change with temperature. Typically the number tells how many parts per million per degree C, and the number has a sign ... positive or negative. Parts per million: means 0.0001 percent of the nominal capacitance marked on it per degree C: means that much for every Celsius degree of temperature change the sign: tells whether the capacitance value goes up or down when temperature increases. How would you make a capacitor that never changes value, or changes very little with temperature ? ===> Take two capacitors, each with 1/2 the value you need, both with the same temperature coefficient but one positive and the other negative, and install them in parallel. Ideally, as the temperature changes, one capacitor goes up in value and the other one falls, and their sum in parallel is constant.
Using it at a voltage higher than the one specified is one way to make a capacitor fail. A: elevated temperature and cycling on-off power will cause capacitors to fail by beginning to leak.