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OEM2-RO-circuite electronice(B)

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About this collection

The ANR bank contains many sets with original names and codes, including navigation, safety and equipment topics. Select a module by name or use question search.

“ANR — OEM2-RO-circuite electronice(B)” contains 3 questions across 1 collection.

Learning

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Sample questions and answers

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Figura25 prezinta un stabilizator cu dioda Zener imbunatatit. Cea de a doua celula de stabilizare are rolul de aThe source image is unavailable.

One correct answer

  • mari curentul de iesire
  • micsora curentul de iesire
  • micsora factorul de stabilizare
  • mari factorul de stabilizare✓ Correct answer
Figura26 prezinta un stabilizator cu dioda Zener imbunatatit. Tranzistorul T are rolul de aThe source image is unavailable.

One correct answer

  • mari curentul de iesire✓ Correct answer
  • micsora curentul de iesire
  • micsora factorul de stabilizare
  • mari factorul de stabilizare
in practica, sunt tranzistoarele din amplificatoarele in contratimp clasa B au jonctiunea baza - emitor prepolarizata direct astfel ca prin fiecare tranzistor sa circule un mic curent de repaus. Despre aceste amplificatoare se spune ca lucreaza in clasa AB. Prin aceasta se urmareste:

One correct answer

  • marirea randamentului;
  • marirea amplificarii in putere
  • marirea benzii de trecere
  • reducerea distorsiunii de trecere✓ Correct answer

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