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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

Semiconductors
All of these
Insulators
Metals

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

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

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

Zero or reverse bias
Forward bias
Zero bias
Reverse bias

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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
Which variety of copper has the best conductivity?

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

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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
An electron can have at room temperature
Must be given to an electron move to conduction band

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