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Electronic Devices and Circuits
In a bipolar transistor, the base collector junction has
Zero or forward bias
Zero bias
Reverse bias
Forward bias
Zero or forward bias
Zero bias
Reverse bias
Forward bias
Answer
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Electronic Devices and Circuits
The amount of photoelectric emission current depends on
Both frequency and intensity of incident radiation
Frequency of incident radiation
None of these
Intensity of incident radiation
Both frequency and intensity of incident radiation
Frequency of incident radiation
None of these
Intensity of incident radiation
Answer
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Electronic Devices and Circuits
The most commonly used semiconductor material is
Silicon
None of these
Germanium
Mixture of silicon and germanium
Silicon
None of these
Germanium
Mixture of silicon and germanium
Answer
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Electronic Devices and Circuits
Free electrons exist in
Third band
Conduction band
Second band
First band
Third band
Conduction band
Second band
First band
Answer
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Electronic Devices and Circuits
If too large current passes through the diode
Excessive heat may damage the diode
All electrons will leave
Diode will emit light
All holes will freeze
Excessive heat may damage the diode
All electrons will leave
Diode will emit light
All holes will freeze
Answer
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Electronic Devices and Circuits
At room temperature the current in an intrinsic semiconductor is due to
Electrons
Holes
Ions
Holes and electrons
Electrons
Holes
Ions
Holes and electrons
Answer
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