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?

Explanation

To understand why photodiodes are operated in reverse bias despite the current being higher in forward bias, we can break down the reasoning into several steps:

### Step-by-Step Solution:

1. **Understanding Forward and Reverse Bias**:
- In forward bias, the current through the photodiode is significantly higher (measured in milliampere, mA) because the junction allows a large flow of charge carriers (electrons and holes).
- In reverse bias, the current is much lower (measured in microamperes, µA) because the junction restricts the flow of charge carriers.

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