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Electronic Devices and Circuits

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

Metals
Insulators
All of these
Semiconductors

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Electronic Devices and Circuits
Permalloy is

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

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

500 mg
100 mg
200 mg
150 mg

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Electronic Devices and Circuits
Which of the following could be the maximum current rating of junction diode by 126?

10 A
20 A
100 A
1 A

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

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

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

Schottky diode
Tunnel diode
Zener diode
PIN diode

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