
Transformateur
Authored by Prof Villard
Physics
11th - 12th Grade
Used 12+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quel est le rôle d'un transformateur en électricité ?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un enroulement secondaire qui, étant traversé par le champ magnétique produit par le primaire, fournit :
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dans un transformateur monophasé, quelle est la formule pour trouver le rapport de transformation 'm' ?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le bobinage primaire est repéré par la lettre:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le bobinage secondaire est repéré par la lettre:
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
D’après la plaque signalétique, le rapport de transformation vaut:
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un transformateur monophasé alimenté sous une tension de 230V/50Hz comporte au primaire 705 spires et au secondaire 77 spires.
Quelle est la tension disponible à vide au secondaire?
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