111.
Match List I with List II and select the correct answer using the codes given below the lists :
| List I | List II |
|---|---|
| (a) Oscillator | (i) Reverse biased input junction |
| (b) Amplifier | (ii) Noise rejection |
| (c) Active filter | (iii) Enhanced output |
| (d) JFET | (iv) Positive feedback |
Exam Year(s)
MH SET - 2023, SET Exam - 2023,
Answer: D
The correct matching is a-iv, b-iii, c-ii, d-i.
- An oscillator relies on positive feedback to sustain oscillation (iv).
- An amplifier produces an enhanced output (iii).
- An active filter passes wanted frequencies and rejects unwanted ones, such as noise (ii).
- A JFET operates with its gate-channel junction reverse biased, which gives it its high input impedance (i).
The other codes give positive feedback to the amplifier or the reverse-biased junction to the oscillator, which mixes up the defining features.
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