What is an amplifier? (QUIZ)

Description

group: Bobbo, Salin
Claudio  Salin
Quiz by Claudio Salin , updated more than 1 year ago
Claudio  Salin
Created by Claudio Salin over 5 years ago
6
0

Resource summary

Question 1

Question
An amplifier is an electrical device that increases signals.
Answer
  • True
  • False

Question 2

Question
The FET amplifier is used in weak signal amplifiers
Answer
  • True
  • False

Question 3

Question
The efficiency is the measure of how much of the power source is usefully applied to the amplifiers input.
Answer
  • True
  • False

Question 4

Question
What does mean "pickup"?
Answer
  • Trasduttore
  • Raccoglitore
  • Camioncino

Question 5

Question
What is the negative feedback?
Answer
  • Technique to avoid distortion by comparing the gain of the amplifier to the output.
  • A technique to avoid distortion by fed back a portion of the output signal and compare it with the input signal.
  • A technique to avoid gain-excess by fed back a portion of the output signal and compare it with the input signal.
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