Electronics and Communication Engineering - Analog Electronics
Exercise :: Analog Electronics - Section 19
| 11. |
If three cascaded stages of amplifier have gains 10, 20 and 30 the overall voltage will be |
Answer: Option D
Explanation:
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| 12. |
A collector collects |
| A. |
electrons from the base in case of N-P-N transistor | | B. |
electrons from the emitter in case P-N-P transistor | | C. |
holes from the base in case of N-P-N transistor | | D. |
holes from the base in case of P-N-P transistor |
Answer: Option B
Explanation:
|
| 13. |
In a resistance loaded, RC coupled amplifier the d.c. component is blocked by |
Answer: Option B
Explanation:
|
| 14. |
A logarithmic amplifier has diode in the feedback path. |
Answer: Option A
Explanation:
|
| 15. |
The input resistance of FET in the low frequency small signal operation is |
| A. |
infinitely high | | B. |
around 1 kΩ | | C. |
around 50 Ω | | D. |
very small |
Answer: Option A
Explanation:
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