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Question & Answer
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The transistors provide the necessary gain by controlling the output voltage based on the difference between the input signals.
The transistors only amplify the input voltage directly without any relation to the input difference.
The transistors serve purely as switches that turn the op-amp on or off without affecting the gain.
The transistors are unnecessary in this application and do not influence the audio amplification.
Understanding the Answer
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Transistors inside an op‑amp act like tiny power boosters. Other options are incorrect because People often think a transistor just copies the input voltage, but it actually amplifies the difference between the two inputs; Some think the transistors are only on‑off switches.
Key Concepts
Internal Components of Op-Amps
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Deep Dive: Internal Components of Op-Amps
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Definition
Op-amps consist of multiple transistors that enable amplification and signal processing. The number of transistors varies by model, with typical op-amps containing several transistors to achieve the desired operational characteristics.
Topic Definition
Op-amps consist of multiple transistors that enable amplification and signal processing. The number of transistors varies by model, with typical op-amps containing several transistors to achieve the desired operational characteristics.
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