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Question

With increasing biasing voltage of a photodiode, the photocurrent magnitude

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

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.

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