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Electronic Devices and Circuits

Electronic Devices and Circuits
Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface.

False
True

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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
Narrowband gap semiconductor
Wideband gap semiconductor
An indirect band gap semiconductor

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Electronic Devices and Circuits
In monolithic ICs, all the components are fabricated by

Diffusion process
Evaporation
Oxidation
None

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Electronic Devices and Circuits
In the sale of diamonds the unit of weight is carat. One carat is equal to

500 mg
150 mg
200 mg
100 mg

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Electronic Devices and Circuits
Power diodes are generally

None of these
Either of the above
Silicon diodes
Germanium diodes

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Electronic Devices and Circuits
The forbidden energy gap between the valence band and conduction band will be least in case of

Semiconductors
Insulators
All of these
Metals

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