Exercise: Analog Electronics

Questions for: Analog Electronics

In figure the dc load line will meet the y and x axis respectively at
A:
20 mA and 30 V
B:
15 mA and 20 V
C:
25 mA and 40 V
D:
10 mA and 20 V
Answer: A
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In a single stage differential amplifier, the output offset voltage is basically dependent on the mismatch of
A:
VBE, IB and β
B:
VBE and IB
C:
IB and β
D:
VBE and β
Answer: C
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The RC network of wein bridge oscillator consists of resistors and capacitors of values R = 220 kΩ and C = 250 PF Determine the frequency of oscillation
A:
2.98 kHz
B:
3 kHz
C:
2 kHz
D:
10 kHz
Answer: A
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In voltage amplifiers, the load resistance
A:
should be a small as possible
B:
should be as large as possible
C:
must be equal to output impedance
D:
must be half of output impedance
Answer: B
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Self bias is an example of __________ feedback that tends to stabilize the drain current against changes in temperature and JFET replacement.
A:
variable
B:
low
C:
negative
D:
positive
Answer: C
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