
Amplificatoare electronice
Quiz
•
English
•
University
•
Practice Problem
•
Hard
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este rolul unui amplificator ?
este de a mări amplitudinea unui semnal electric (de
tensiune, curent sau putere), fără ai modifica forma
este de a micsora amplitudinea unui semnal electric (de
tensiune, curent sau putere), fără ai modifica forma
este de a masura amplitudinea unui semnal electric (de
tensiune, curent sau putere), fără ai modifica forma
nici o varianta
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Proprietatile unui amplificator operational ideal sunt
amplificarea infinta si independenta de frecventa;
curentu de intrare egal cu zero
tensiunea de iesire urmareste instantaneu variatia tensiuni de intrare
rezistenta de iesire egala cu zero
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un amplificator reprezinta
un cuadripol activ, prevazut cu doua borne de intrare si doua
borne de iesire, capabil sa redea la iesire semnale electrice de putere mult mai mare decat
cele de la intrare.
un cuadripol pasiv, prevazut cu doua borne de intrare si doua
borne de iesire, capabil sa redea la iesire semnale electrice de putere mult mai mare decat
cele de la intrare.
un cuadripol activ, prevazut cu patru borne de intrare si doua
borne de iesire, capabil sa redea la iesire semnale electrice de putere mult mai mare decat
cele de la intrare.
un cuadripol activ, prevazut cu doua borne de intrare si doua
borne de iesire, capabil sa redea la intrare semnale electrice de putere mult mai mare decat
cele de la intrare.
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dupa natura semnalului ce preponderenta amplificat, se impart:
amplificatoare de tensiune
amplificatoare de curent
amplificatoare de putere
amplificatoare magnetice
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de amplificator este in imagine ?
amplificatoare de tensiune
amplificatoare de curent
amplificatoare de putere
amplificatoare magnetice
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de amplificator este in imagine ?
amplificatoare de tensiune
amplificatoare de curent
amplificatoare de putere
amplificatoare magnetice
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de amplificator este in imagine ?
amplificatoare de tensiune
amplificatoare de curent
amplificatoare de putere
amplificatoare magnetice
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