The resistance box is a common experimental equipment, which is used to adjust the resistance in the circuit.
A potentiometer is a resistance element with three output terminals and a resistance value that can be adjusted according to a certain variation pattern. Potentiometers are usually composed of resistors and movable electric brushes. When the electric brush moves along the resistor, a resistance value or voltage that is proportional to the displacement is obtained at the output end.
A diode is a semiconductor device with two terminals, consisting of two regions: a p-type semiconductor and an n-type semiconductor. A diode can utilize the characteristics of a pn junction, allowing only unidirectional current to pass through, forming a rectifying effect
A diode is a semiconductor device with two electrodes, consisting of an n-type semiconductor and a p-type semiconductor.
Zener diode is a special type of semiconductor diode that can maintain a stable output voltage within the operating voltage range
An adjustable potentiometer is an electronic component consisting of a resistor and a sliding contactor
