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Electronic Devices and Circuits

Electronic Devices and Circuits
Power diodes are generally

Silicon diodes
Germanium diodes
Either of the above
None of these

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

100
99
1.01
0.99

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Electronic Devices and Circuits
The amount of photoelectric emission current depends on

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

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Electronic Devices and Circuits
Which one of the following is not a characteristic of a ferroelectric material?

High dielectric constant
No hysteresis
Electric dipole moment
Ferroelectric characteristic only above the curie point

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

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

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