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Electronic Devices and Circuits

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

Zero bias
Zero or reverse bias
Forward bias
Reverse bias

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Electronic Devices and Circuits
Free electrons exist in

Second band
Conduction band
First band
Third band

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Electronic Devices and Circuits
The depletion layer width of Junction

Is increased under reverse bias
Increases with heavy doping
Is independent of applied voltage
Decreases with light doping

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Electronic Devices and Circuits
Which variety of copper has the best conductivity?

Induction hardened copper
Copper containing traces of silicon
Pure annealed copper
Hard drawn copper

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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
0.99
100
1.01

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Electronic Devices and Circuits
An electron in the conduction band

Has lower energy than the electron in the valence band
Loses its charge easily
Jumps to the top of the crystal
Has higher energy than the electron in the valence band

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MORE MCQ ON Electronic Devices and Circuits

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