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Electronic Devices and Circuits

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

10 A
1 A
100 A
20 A

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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

All of these
Metals
Semiconductors
Insulators

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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
Silicon is not suitable for fabrication of light emitting diodes because it is

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

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Electronic Devices and Circuits
In a bipolar transistor, the base collector junction has

Zero bias
Forward bias
Reverse bias
Zero or forward bias

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Electronic Devices and Circuits
Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

Antiparallel to magnetic field
In the direction of current
In arbitrary direction
Normal to both current and magnetic field

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