^Uses of diode

A diode can be used as

• rectifiers (to convert dc to ac),
• LED (produce light on forward biasing a diode)
• solar cells (using solar energy to produce emf)
• photodiodes (to produce reverse current which can be controlled with intensity of light)
• Zener diodes (to converting fluctuating dc to constant dc)
• fast switching OR – gate & AND – gate