1. Frequency response is a graph of voltage gain versus
a. Frequency
b. Power gain
c. Input voltage
d. Output voltage
a
2. At low frequencies, the coupling capacitors produce a decrease in
a. Input resistance
b. Voltage gain
c. Generator resistance
d. Generator voltage
b
3. The stray-wiring capacitance has an effect on the
a. Lower cutoff frequency
b. Midband voltage gain
c. Upper cutoff frequency
d. Input resistance
c
4. At the lower or upper cutoff frequency, the voltage gain is
a. 0.35Amid
b. 0.5Amid
c. 0.707Amid
d. 0.995Amid
c
5. If the power gain doubles, the decibel power gain increases by
a. A factor of 2
b. 3 dB
c. 6 dB
d. 10 dB
b
6. If the voltage gain doubles, the decibel voltage gain increases by
a. A factor of 2
b. 3 dB
c. 6 dB
d. 10 dB
c
7. If the voltage gain is 10, the decibel voltage gain is
a. 6 dB
b. 20 dB
c. 40 dB
d. 60 dB
b
8. If the voltage gain is 100, the decibel voltage gain is
a. 6 dB
b. 20 dB
c. 40 dB
d. 60 dB
c
9. If the voltage gain is 2000, the decibel voltage gain is
a. 40 dB
b. 46 dB
c. 66 dB
d. 86 dB
c
10. Two stages have decibel voltage gains of 20 and 40 dB. The total ordinary voltage gain is
a.1
b. 10
c. 100
d. 1000
d
11. Two stages have voltage gains of 100 and 200. The total decibel voltage gain is
a. 46 dB
b. 66 dB
c. 86 dB
d. 106 dB
c
12. One frequency is 8 times another frequency. How many octaves apart are the two frequencies?
a. 1
b. 2
c. 3
d. 4
c
13. If f = 1 MHz, and f2 = 10 Hz, the ratio f/f2 represents how many decades?
a. 2
b. 3
c. 4
d. 5
d
14. Semilogarithmic paper means
a. One axis is linear, and the other is logarithmic
b. One axis is linear, and the other is semilogarithmic
c. Both axes are semilogarithmic
d. Neither axis is linear
a
15. If you want to improve the high-frequency response of an amplifier, which of these would you try?
a. Decrease the coupling capacitances.
b. Increase the emitter bypass capacitance.
c. Shorten leads as much as possible.
d. Increase the generator resistance.
c
16. The voltage gain of an amplifier decreases 20 dB per decade above 20 kHz. If the midband voltage gain is 86 dB, what is the
ordinary voltage gain at 20 MHz?
a. 20
b. 200
c. 2000
d. 20,000
a
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