What are photodiodes?

What is a photodiode? Explain its working principle.

What is a photodiode? Explain its working principle.

What is a photodiode? Draw theI-V characteristic curve of a photodiode. Mention one use of photodiode.

Why are photodiodes used preferably in reverse bias condition?

What is a photodiode ? Draw the I-V characteristic curve of a photodiode. Mention one use of photodiode.

What is a photodiode why is it kept in reverse bias for operation while the current available in forward bias happens to be more

What is meant by a photodiode ? What are its main practical uses?

The current in the forward bias is known to be more (in mA ) than the current in the reverse bias (in mu A ). What is the reason then to operate the photodiodes in reverse bias?