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Electronic Devices and Circuits

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

All of these
Semiconductors
Insulators
Metals

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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
Only those produced by thermal energy
Any of the above

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Electronic Devices and Circuits
Permalloy is

A conon-ferrous alloy used in aircraft industry
A polymer
A nickel an iron alloy having high permeability
A variety of stainless steel

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Electronic Devices and Circuits
Which variety of copper has the best conductivity?

Pure annealed copper
Induction hardened copper
Hard drawn copper
Copper containing traces of silicon

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

Evaporation
Oxidation
Diffusion process
None

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Electronic Devices and Circuits
Fermi level is the amount of energy in which

A hole can have at room temperature
Must be given to an electron move to conduction band
An electron can have at room temperature
None of these

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