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MCQ Practice Question

Electronic Devices & Circuits Optoelectronic Devices

A photodiode operated at approximately zero external bias is commonly described as operating in?

APhotovoltaic mode
BAvalanche mode only
CSaturation mode of a BJT
DClass-C mode

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Correct Answer: A. Photovoltaic mode

Explanation: In photovoltaic mode, the photodiode is used with approximately zero applied bias and develops a light-dependent voltage/current, as in solar-cell operation.

Reference: Standard optoelectronics: photovoltaic mode

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