There are many types of diodes that are used for different functions in electronics. The most common types include the laser diodes and the light emitting diodes (LED).
zener diode
It's a high voltage diode, typically used in microwave ovens.
It is considered a diode, a Light Emitting Diode (LED).
diode is made by joining a P and N type semiconductor materials
The dropper diode voltage regulator is a type of voltage regulator. It is comprised of a single diode that serves as the voltage regulating device.
The read type diode are called impatt diode
zener diode
A diode modulator is a type of AM modulator constructed using diodes. One type of diode modulator is the ring modulator shown in the image.
An ordinary diode, no. It has nowhere to get energy from.But a solar cell is a type of diode that converts light to electricity. So it is a diode that can power a circuit. So yes, there is one type of diode that can power a circuit.
varactor diode is a correct answer
It's a high voltage diode, typically used in microwave ovens.
A photo diode
A diode has a n type and a p type materials that's why it's called a pn-junction device
infrared diode
It is considered a diode, a Light Emitting Diode (LED).
diode is made by joining a P and N type semiconductor materials
4148 is the part number of the 1N4148 diode. It is used to uniquely identify this particular type of diode among others.