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Electronic Devices and Circuits

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

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

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Electronic Devices and Circuits
In a semiconductor diode, the barrier offers opposition to

Free electrons in N-region only
Majority carriers in both regions
Majority as well as minority carriers in both regions
Holes in P-region only

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Electronic Devices and Circuits
For a NPN bipolar transistor, what is the main stream of current in the base region?

Drift of electrons
Drift of holes
Diffusion of holes
Diffusion of electrons

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Electronic Devices and Circuits
The forbidden energy gap between the valence band and conduction band will be least in case of

Insulators
All of these
Semiconductors
Metals

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Electronic Devices and Circuits
Free electrons exist in

Second band
Conduction band
First band
Third band

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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

99
1.01
100
0.99

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