Exercise: Analog Electronics

Questions for: Analog Electronics

A generator with an internal resistance of 600 Ω drives an amplifier whose input resistance is 400 Ω. The generator's open circuit voltages is 1 mV; the amplifier develops 100mV across an 8kΩ load. The current amplification is
A:
2.5
B:
12.5
C:
25
D:
125
Answer: B
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The main drawback in the performance of shunt peaked wide band amplifier is
A:
two low gain at low frequency
B:
poor phase response
C:
reduce frequency at middle frequency
D:
that the maximum gain of the stage is small
Answer: B
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A CE amplifier is the most common BJT amplifier.
A:
True
B:
False
C:
D:
Answer: A
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The coupling capacitor mainly affects
A:
bandwidth
B:
lower cut-off frequency
C:
higher cut-off frequency
D:
both lower as well as higher cut-off frequency
Answer: B
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In rectifiers the use of RC filters is recommended when
A:
load current is high
B:
load current is small
C:
load current is neither high nor small
D:
either (a) or (c)
Answer: B
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