Discussion
Match each component with the job it does in a divider bias network.
List I
A. Upper divider resistor
B. Emitter resistor
C. Emitter bypass capacitor
List II
P. Sets the base voltage with its partner
Q. Fixes the emitter current and stabilises it
R. Restores the gain at signal frequencies
Select the correct match.
Answer: A
The correct pairing is A-P, B-Q, C-R. Three components, three separable jobs, which is what makes the arrangement easy to design: the divider is chosen for the base voltage, the emitter resistor for the current, and the capacitor for the low-frequency limit. A circuit whose parameters can be set one at a time is far easier to work with than one where every choice interacts.
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