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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