Thursday, July 4, 2013

Malvino Chapter 16

Chapter 16 

1. Frequency response is a graph of voltage gain versus 

a. Frequency 
b. Power gain 
c. Input voltage 
d. Output voltage 

2. At low frequencies, the coupling capacitors produce a decrease in 

a. Input resistance 
b. Voltage gain 
c. Generator resistance 
d. Generator voltage 

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 


4. At the lower or upper cutoff frequency, the voltage gain is 

a. 0.35Amid 
b. 0.5Amid 
c. 0.707Amid 
d. 0.995Amid 

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 

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 

7. If the voltage gain is 10, the decibel voltage gain is 

a. 6 dB 
b. 20 dB 
c. 40 dB 
d. 60 dB 

8. If the voltage gain is 100, the decibel voltage gain is 

a. 6 dB 
b. 20 dB 
c. 40 dB 
d. 60 dB 

9. If the voltage gain is 2000, the decibel voltage gain is 

a. 40 dB 
b. 46 dB 
c. 66 dB 
d. 86 dB 

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 

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 

12. One frequency is 8 times another frequency. How many octaves apart are the two frequencies? 

a. 1 
b. 2 
c. 3 
d. 4 

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 

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 

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. 

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 




Also try:


Malvino Chapter 1

Malvino Chapter 2
Malvino Chapter 3
Malvino Chapter 4
Malvino Chapter 5
Malvino Chapter 6
Malvino Chapter 7
Malvino Chapter 8
Malvino Chapter 9
Malvino Chapter 10
Malvino Chapter 11
Malvino Chapter 12
Malvino Chapter 13
Malvino Chapter 14
Malvino Chapter 15
Malvino Chapter 17
Malvino Chapter 18
Malvino Chapter 19
Malvino Chapter 20
Malvino Chapter 21
Malvino Chapter 22
Malvino Chapter 23
Malvino Chapter 24

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