Exam-style question
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Which of the following best describes the I-V characteristics of a photodiode?.
- A.Linear relationship in both forward and reverse bias
- B.Non-linear relationship with a breakdown region
- C.Constant current regardless of voltage
- D.No current flow in reverse bias
Model answer
What a good answer should say
- Non-linear relationship with a breakdown region
Explanation
Why this works
The I-V characteristics of a photodiode show a non-linear relationship, particularly in reverse bias where it can enter a breakdown region, allowing for increased current flow.
Common mistake
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