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2 cards from this section. Quick, good the night before a test.
Identify the formula for input resistance in a feedback system.
Think about the impedance and how it gets altered.
What is the role of the attenuation factor in input resistance?
Consider how signals can weaken.
What is the primary purpose of input resistance in a feedback system?
Consider what role input plays in the circuit.
True or False: The load-affected transimpedance is the same as the original transimpedance.
Reflect on how load changes influence measurements.
A feedback circuit has an original impedance of 220 Ohms and a load configuration of 80 Ohms. Calculate the equivalent input resistance.
Work through the parallel resistance calculations carefully.
Discuss the effect on input resistance when an additional resistor is added in series with the existing feedback circuit.
How does series configuration generally affect total resistance?
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