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Electronic Devices and Circuits

Electronic Devices and Circuits
In the sale of diamonds the unit of weight is carat. One carat is equal to

150 mg
200 mg
500 mg
100 mg

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Electronic Devices and Circuits
How many free electrons does a p type semiconductor has?

Only those produced by doping
Any of the above
Those produced by doping as well as thermal energy
Only those produced by thermal energy

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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 holes
Drift of electrons
Diffusion of holes
Diffusion of electrons

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Electronic Devices and Circuits
In which of these is reverse recovery time nearly zero?

Tunnel diode
Schottky diode
PIN diode
Zener diode

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

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

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Electronic Devices and Circuits
Silicon is not suitable for fabrication of light emitting diodes because it is

Narrowband gap semiconductor
Direct band gap semiconductor
An indirect band gap semiconductor
Wideband gap semiconductor

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