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Electronic Devices and Circuits

Electronic Devices and Circuits
Power diodes are generally

None of these
Either of the above
Silicon diodes
Germanium diodes

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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
Diffusion of holes
Diffusion of electrons
Drift of holes

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

10 A
100 A
1 A
20 A

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

Reverse bias
Zero or reverse bias
Zero bias
Forward bias

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Electronic Devices and Circuits
Which of the following has highest resistivity?

Paraffin wax
Mica
Mineral oil
Air

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