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Electronic Devices and Circuits

Electronic Devices and Circuits
Power diodes are generally

Germanium diodes
Either of the above
None of these
Silicon diodes

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Electronic Devices and Circuits
How many free electrons does a p type semiconductor has?

Those produced by doping as well as thermal energy
Only those produced by doping
Any of the above
Only those produced by thermal energy

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Electronic Devices and Circuits
In a bipolar transistor, the base collector junction has

Zero bias
Zero or forward bias
Forward bias
Reverse bias

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Electronic Devices and Circuits
The sensitivity of human eyes is maximum at

Red portion of spectrum
White portion of spectrum
Green portion of spectrum
Violet portion of spectrum

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Electronic Devices and Circuits
Silicon is not suitable for fabrication of light emitting diodes because it is

Direct band gap semiconductor
An indirect band gap semiconductor
Narrowband gap semiconductor
Wideband gap semiconductor

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Electronic Devices and Circuits
An electron in the conduction band

Jumps to the top of the crystal
Has lower energy than the electron in the valence band
Has higher energy than the electron in the valence band
Loses its charge easily

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MORE MCQ ON Electronic Devices and Circuits

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