Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

For a BJT, under the saturation condition,
A:
IC = ÎČIB
B:
IC = aIB
C:
IC is independent of all other parameters
D:
IC < ÎČIB
Answer: D
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Lowest noise can be expected in case of
A:
carbon composition resistors
B:
carbon film resistors
C:
tin oxide resistors
D:
metal film resistors
Answer: D
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Highest resistivity of the following is
A:
nichrome
B:
constantan
C:
metal
D:
manganin
Answer: A
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Which of the following statements regarding two transistor model of p-n-n-p device is correct?
A:
It explain only the turn on portion of the device characteristics
B:
It explain only the turn off portion of the device characteristics
C:
It explain only the negative region portion of the device characteristics
D:
It explain all the regions of the device characteristics
Answer: D
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When reverse bias is applied to a junction diode
A:
minority carrier current is increased
B:
majority carrier current is increased
C:
potential barrier is lowered
D:
potential barrier is raised
Answer: D
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