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2 cards from this section. Quick, good the night before a test.
What does feedback do in an amplifier?
Think about the amplifier's circuit behavior.
Define output resistance in an amplifier context.
Consider how it would affect voltage delivery.
What is the primary effect of feedback on output resistance?
Think back to our discussions on amplifier configurations.
True or False: A current amplifier will always increase voltage.
Recall the functionality of different amplifier types.
Given a voltage amplifier with an ideal β of 0.1 and a feedback resistance of 200 Ohms, calculate the output resistance when the input resistance is 1000 Ohms. Show all workings.
Apply feedback formulas to find interactions.
A current amplifier has a feedback factor of 0.2, with source resistance of 100 Ohms and input resistance of 500 Ohms. What is the effective output resistance?
Combine resistances together considering their configurations.
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