LED

 

Introduction:- 

LED stands for Light Emitting Diode, which emits light. LED is a semiconductor device, which is small in size, it works at a small current. When current is passed through it, electrons are emitted from its cathode which we see as light.

Symbol of LED:-

Use of Led:- The uses of Led is given below:-

                                  1.Digital Watch

                                   2. Computer

                                   3. Counter, Calculator etc

                                   4. Charging circuit

                                   5. Electronics Indication system.