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Electronic Devices and Circuits

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

Zero bias
Forward bias
Reverse bias
Zero or reverse bias

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

Forward bias
Zero or forward bias
Zero bias
Reverse bias

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

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

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

Tunnel diode
PIN diode
Zener diode
Schottky diode

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Electronic Devices and Circuits
Forbidden energy gap in germanium at 0 K is about

0.78 eV
5 eV
2 eV
10 eV

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Electronic Devices and Circuits
At room temperature the current in an intrinsic semiconductor is due to

Holes and electrons
Holes
Electrons
Ions

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