Basic Qualification · B-004 Circuit components · B-004-003-004
If a low-level signal is placed at the input to a transistor and a higher level of the signal is produced at the output, what is this effect called?
- A Detection
- B Modulation
- C Rectification
- D Amplification
Correct answer: D — Amplification. From the official ISED question bank, verified word for word.
Why
Amplification is the process where a transistor takes a weak input signal and produces a stronger version of it at the output, effectively increasing its power or voltage. The full explanation — and one for every question — is in Pro.
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The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.