Physics 2 - Circuit Devices

Circuit Devices

Current Only Flows in One Direction through a Diode

• A diode is a special device made from semiconductor material such as silicon.
• It is used to regulate the potential difference in circuits.
• It lets current flow freely through it in one direction, but not in the other.
• This turns out to be real useful in various electonic circuits.

Light-Emitting diodes are Very Useful

• A LED emits light when a current flows through it in a forward direction.
• LEDs are being used more…