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Electronic Devices and Circuits

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

Forward bias
Reverse bias
Zero bias
Zero or reverse bias

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

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

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Electronic Devices and Circuits
Fermi level is the amount of energy in which

Must be given to an electron move to conduction band
An electron can have at room temperature
None of these
A hole can have at room temperature

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Electronic Devices and Circuits
Piezoelectric quartz crystal resonators find application where

Signal amplification is required
Rectification of the signal is required
Signal frequency control is required
Modulation of signal is required

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Electronic Devices and Circuits
When avalanche breakdown occurs covalent bonds are not affected.

True
False

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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 electrons
Diffusion of holes
Drift of holes

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