by using a variable resistor to manually change the resistance, you can control the sensitivity and the voltage output of the circuit, useful in applications like volume controls in radios ...

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 ...

You can use a photoelectric FET as a variable resistor or a potentiometer in combination with a fixed resistor. The H11F3M photoelectric FET has an isolation voltage of 7.5 kV, enabling you to safely ...