Discussion
Statement I: An active load raises a stage's voltage gain.
Statement II: An active load raises a stage's output voltage swing.
In the light of the above statements, choose the correct answer.
Answer: D
The first is true and the second is false: the gain rises because the load impedance is high, and the swing falls because the current source needs headroom of its own. The two move in opposite directions, which is exactly the trade the technique makes. Being able to name both directions of a change is what distinguishes understanding a technique from having heard of it.
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