The I-V characteristics of a photodiode for d | vedclass

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Question

(D) photodiode is a special purpose $P-N$ junction diode fabricated with a transparent window to allow light to fall on the diode. When the photodiode

Vedclass · Accepted Answer

$I_4$

Vedclass · Answer

(D) photodiode is a special purpose $P-N$ junction diode fabricated with a transparent window to allow light to fall on the diode. When the photodiode is illuminated with light,electron-hole pairs are generated due to the absorption of photons. This results in an increase in the reverse saturation current. The magnitude of the reverse current is directly proportional to the intensity of the incident light. Looking at the provided $I-V$ characteristics graph,the current increases as we move from $I_1$ to $I_4$ in the reverse bias region. Since the reverse current is highest for the curve labeled $I_4$,it corresponds to the maximum illumination intensity. Therefore,the correct option is $D$.

The $I-V$ characteristics of a photodiode for different illumination intensities $I_1, I_2, I_3$ and $I_4$ are shown in the figure. Which of the following represents the maximum intensity?

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