When current passes through a resistor it generates heat, and the thermal reaction causes mechanical changes by differential expansion in the different materials. Ambient conditions have the same ...

Higher tier - variable resistor Moving the position of the slider on this resistor, changes the length of wire in the circuit which changes the resistance.

Variable power resistor (and why they wouldn’t let me in to art school) I need an adjustable power resistor that can be switched with a resolution of 1Ω. After some thought and web surfing, I bought ...