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In small-signal models, what does the term 'transconductance' refer to?
Practice Questions
Q1
In small-signal models, what does the term 'transconductance' refer to?
The ratio of output current to input voltage
The ratio of input current to output voltage
The gain of the amplifier
The resistance of the transistor
Questions & Step-by-Step Solutions
In small-signal models, what does the term 'transconductance' refer to?
Steps
Concepts
Step 1: Understand that small-signal models are used to analyze how circuits respond to small changes in input signals.
Step 2: Recognize that transconductance is a key parameter in these models.
Step 3: Know that transconductance measures how effectively a circuit converts an input voltage change into an output current change.
Step 4: Remember the formula: Transconductance (gm) = Output Current (Iout) / Input Voltage (Vin).
Step 5: Realize that a higher transconductance means the circuit is more sensitive to input voltage changes.
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