Exercise: Analog Electronics

Questions for: Analog Electronics

The voltage gain of which transistor configuration is less than unity?
A:
CB
B:
CE
C:
CC
D:
None
Answer: C
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Barkhausen criterion is 1 + Avβ = 0.
A:
True
B:
False
C:
D:
Answer: A
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A Darlington pair has β = 300. If RE = 1 kΩ and RL = 100 Ω, the input impedance at the base is approximately
A:
300 k ohm
B:
3 k ohm
C:
100 k ohm
D:
30 k ohm
Answer: B
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If the thermal resistance of a transistor is lower it means
A:
higher junction temperature
B:
lower junction temperature
C:
higher or lower junction temperature depending on circuit conditions
D:
higher or lower junction temperature depending on transistor
Answer: B
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In a half wave rectifier, Vrms is
A:
B:
C:
D:
None of these
Answer: A
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