Electronics and Communication Engineering - Matching Questions - Discussion
Discussion Forum : Matching Questions - Section 1 (Q.No. 3)
3.
Match the following:
| List I (Circuit) | List II (Characteristics) | ||
|---|---|---|---|
| A. | Darlington pair | 1. | uses pnp and npn transistors used as power amplifier |
| B. | CB amplifier | 2. | Voltage gain nearly 1 and high input impedance |
| C. | Cascade amplifier | 3. | low input impedance used for high frequency isolation |
Discussion:
2 comments Page 1 of 1.
Shivanshu said:
8 years ago
The Common base has highest input impedance. Hence max. Part of I/p goes it. Because of resistance divider circuit. Formed between I/p impedance and series resistance. Hence can be used for isolation. It's current gain is 1. But voltage gain can be any value.
Hence b-- (3).
Hence b-- (3).
Garima said:
1 decade ago
How? Please describe the answer for me.
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