Electronic Devices - BJT Amplifiers
Exercise :: BJT Amplifiers - Filling the Blanks
31. |
The bypass capacitor in a common-emitter configuration ________ the voltage gain. |
A. |
significantly decreases | B. |
significantly increases | C. |
slightly increases | D. |
slightly decreases |
Answer: Option B
Explanation:
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32. |
The loaded voltage gain of an amplifier is ________ the no-load level. |
A. |
always more than | B. |
always less than | C. |
always the same as | D. |
None of the above |
Answer: Option B
Explanation:
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33. |
The common-emitter configuration has a ________ level of input impedance with a ________ voltage and current gain. |
A. |
moderate, high | B. |
low, moderate | C. |
low, low | D. |
high, low |
Answer: Option A
Explanation:
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34. |
For a common-base configuration, the input impedance is relatively ________ and the output impedance quite ________. |
A. |
high, small | B. |
small, high | C. |
small, small | D. |
high, high |
Answer: Option B
Explanation:
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35. |
The output voltage and the input voltage are ________ for the common-emitter configuration. |
A. |
in phase | B. |
45º out of phase | C. |
90º out of phase | D. |
180º out of phase |
Answer: Option D
Explanation:
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