Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

The conductivity of a semiconductor crystal due to any current carrier is not proportional to
A:
mobility of the carrier
B:
effective density of states in the conduction band
C:
electronic charge
D:
surface states in the semiconductor
Answer: A
No answer description is available. Let's discuss.
In forward active region, the operation of a BJT
A:
both junctions are forward biased
B:
both junctions are reverse biased
C:
emitter base junction is forward biased and base collector junction is reverse biased
D:
emitter base junction is reverse biased and base collector junction is reverse biased
Answer: C
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The thermionic emission current is given by
A:
Fermi-Dirac distribution
B:
Maxwell's equation
C:
Richardson Dushman equation
D:
Langmuir Child law
Answer: C
No answer description is available. Let's discuss.
The current due to thermionic emission is given by Richardson Dushman equation.
A:
True
B:
False
C:
D:
Answer: A
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The band gap of silicon at 300K is
A:
1.36 eV
B:
1.10 eV
C:
0.80 eV
D:
0.67 eV
Answer: B
No answer description is available. Let's discuss.
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