Basic Qualification · B-004 Circuit components · B-004-001-007
The increase in signal level by an amplifier is called:
- A attenuation
- B amplitude
- C modulation
- D gain
Correct answer: D — gain. From the official ISED question bank, verified word for word.
Why
An amplifier makes a weak radio signal stronger, and this increase in strength is technically called gain. The full explanation — and one for every question — is in Pro.
Practise this section
The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.