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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
Metals
All of these
Insulators

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Electronic Devices and Circuits
Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

Normal to both current and magnetic field
Antiparallel to magnetic field
In the direction of current
In arbitrary direction

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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
The amount of photoelectric emission current depends on

Both frequency and intensity of incident radiation
Intensity of incident radiation
Frequency of incident radiation
None of these

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Electronic Devices and Circuits
A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is

0.99
1.01
100
99

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

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

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