Question

With increasing biasing voltage of a photodiode, the photocurrent magnitude

• A. remains constant
• B. increases initially and after attaining certain value it decreases
• C. increases linearly
• D. increases initially and saturates finally

Answer 1

The correct option is D increases initially and saturates finally

I-V characteristic of a photodiode is as follows:
On increasing the biasing voltage of a photodiode, the magnitude of photocurrent first increases and then attains a saturation.