Discussion
| List - I | List - II |
|---|---|
| a. Stability factor | i. Large bandwidth |
| b. Loop gain \(\ge\) 1 | ii. Voltage divider bias |
| c. Lock range | iii. Oscillators |
| d. Negative feedback | iv. PLL |
Codes : a b c d
Answer: B
The matching is: a stability factor with voltage divider bias (ii), b loop gain of at least 1 with oscillators (iii), c lock range with PLL (iv), d negative feedback with large bandwidth (i), the code ii iii iv i (option B).
A voltage divider bias gives a low stability factor, a loop gain of unity or more is the Barkhausen condition for oscillation, the lock range is a property of a phase-locked loop, and negative feedback widens the bandwidth. Options A, C and D mix these pairs.
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