Which of the following technique canâ€™t be used for generating electron-hole pairs in electronic devices? - Electronic Devices and Circuits

Electronics and Communication Engineering (ECE) : Electronic Devices and Circuits - Quiz(MCQ)

Which of the following technique canâ€™t be used for generating electron-hole pairs in electronic devices?

A)

Impurity injection

B)

Photo excitation

C)

Impact ionization

D)

Thermal excitation

Correct Answer : Option (A) : Impurity injection

Explanation : Electron-hole pairs can be generated by increasing temperature or ionization or photo excitation. Impurity injection is done for doping of semiconductors. This process doesn’t generate electron-hole pairs.

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A)

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B)

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C)

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D)

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Correct Answer : wavelength of the incident radiation

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A)

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B)

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C)

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D)

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A)

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B)

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C)

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D)

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