# LTspice: Can I simulate current generated heat?

I'm simulating a simple circuit with a resistance temperature detector. I want to know if it is possible to simulate the small change in the resistance as the current flowing through the resistor generates heat.

For example, a TRAN simulation where the initial value of the current is simply given by V=RI but after some time the current value would be lower as the own current heats the resistor thus amplifying the resistance.

If it isn't possible to do this in LTspice what should I use?

There is no thermal information in a SPICE element except a static parameter, temp, which is global and sets the temperature when the whole circuit is functioning, or the temperature coefficients tc1, tc2, etc in the resistor's properties (or others, see the help under LTspice > Cicuit Elements > R. Resistor).