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Electronic Devices and Circuits

Electronic Devices and Circuits
As compared to bipolar junction transistor, a FET

Is less noisy
Has higher input resistance
All of these
Has better thermal stability

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Electronic Devices and Circuits
Free electrons exist in

Conduction band
Second band
Third band
First band

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Electronic Devices and Circuits
Permalloy is

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

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

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Electronic Devices and Circuits
Which of the following has highest resistivity?

Air
Mineral oil
Mica
Paraffin wax

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Electronic Devices and Circuits
The depletion layer width of Junction

Is increased under reverse bias
Decreases with light doping
Is independent of applied voltage
Increases with heavy doping

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