Hello there,
I am at a loss with a formula which calculates the resistance for a given temperature.
R = Ro(1+at)
I understand that this is only applicable for a temperature range of between 0 and 100C. Which is fine when i want to calculate the temperature change from 15C to 20C.
I have the temp coefficient of copper at 20C = 0.0039
and all the initial resistances i have calculated are at 20C using a resistivity value for copper in previous equations.
However, I need something that will work with -55C
Could somebody point me in the right direction with this as i can only find information on super conductivity which doesn't apply to this temperature or the level of my homework question.
Any help information would be much appreciated.
I am at a loss with a formula which calculates the resistance for a given temperature.
R = Ro(1+at)
I understand that this is only applicable for a temperature range of between 0 and 100C. Which is fine when i want to calculate the temperature change from 15C to 20C.
I have the temp coefficient of copper at 20C = 0.0039
and all the initial resistances i have calculated are at 20C using a resistivity value for copper in previous equations.
However, I need something that will work with -55C
Could somebody point me in the right direction with this as i can only find information on super conductivity which doesn't apply to this temperature or the level of my homework question.
Any help information would be much appreciated.