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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
For a P-N diode, the number of minority carriers crossing the junction depends on

Forward bias voltage
Rate of thermal generation of electron hole pairs
Potential barrier
None of these

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

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

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

None
Evaporation
Diffusion process
Oxidation

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

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

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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
Wideband gap semiconductor
Narrowband gap semiconductor
An indirect band gap semiconductor

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