
Amplificatoare operaţionale
Authored by Mirela Lie
Science
11th Grade
Used 19+ times

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9 questions
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1.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
AO sunt amplificatoare de curent continuu, având reacţie negativă interioară şi care fiind prevăzute cu reacţie pozitivă exterioară, pot executa operaţii matematice.
Adevărat
Fals
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Un AO, dacă este în conexiune neinversoare, poate realiza înmulţirea cu o constantă.
Adevărat
Fals
3.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Amplificarea în buclă deschisă Ao (fără a conecta reacţia externă) este teoretic zero, practic foarte mică.
Adevărat
Fals
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amplificarea realizată de circuitul din figură este:
5
-5
6
-6
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dacă amplificarea realizată de circuitul din figură este 10 şi tensiunea de ieşire -2V, atunci tensiunea de intrare este:
-100 mV
-200 MV
100 mV
200mV
6.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Amplificarea unui AO în conexiune neinversoare este
Adevărat
Fals
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Prin montarea în cascadă a unui număr par de AO inversoare, se obţine o tensiune de ieşire în antifază cu tensiunea de intrare.
Adevărat
Fals
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