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Electronic Devices and Circuits

Electronic Devices and Circuits
Forbidden energy gap in germanium at 0 K is about

0.78 eV
2 eV
5 eV
10 eV

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

100 mg
200 mg
500 mg
150 mg

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

Zener diode
Schottky diode
Tunnel diode
PIN diode

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Electronic Devices and Circuits
For a P-N diode, the number of minority carriers crossing the junction depends on

Forward bias voltage
None of these
Rate of thermal generation of electron hole pairs
Potential barrier

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

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

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Electronic Devices and Circuits
Permalloy is

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

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