Zener Diode

The video tutorial covers various semiconductor devices, starting with the Zener diode, which acts as a voltage regulator in circuits. It explains the diode's operation in reverse bias and its role in maintaining constant voltage. The tutorial then shifts to light-emitting diodes (LEDs), highlighting their efficiency and applications. Optoelectronic devices like photodiodes are discussed, focusing on their use in detecting optical signals. Finally, the video explores solar cells, detailing their photovoltaic principle and effectiveness in energy conversion.

What is the primary function of a Zener diode in a circuit?

Explain the phenomenon of field ionization in Zener diodes.

How does a Zener diode maintain a constant voltage across it despite changes in current?

Describe the working principle of a light-emitting diode (LED).

What are the advantages of using LEDs in electronic applications?

What is the photovoltaic effect as it relates to photodiodes?

How does a solar cell generate electricity?