Transformateur
Authored by Ludovic Raphanel
Physics
9th Grade
Used 13+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qu'est-ce que l'image représente?
un moteur
un transformateur
un sectionneur
un contacteur
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le rôle d'un transformateur en électricité ?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans un transformateur monophasé, quelle est la formule pour trouver le rapport de transformation 'm' ?
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
D’après la plaque signalétique, le rapport de transformation vaut:
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un transformateur monophasé alimenté sous une tension de 230V/50Hz comporte au primaire 700 spires et au secondaire 70 spires. Quelle est la tension disponible au secondaire?
U2= 2 300V
U2= 23V
U2= 0,450mV
U2= 3,1V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
le transformateur se compose par deux partie (primaire & secondaire)
vrai
faux
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
le transformateur peut fonctionner dans les deux sens
vrai
faux
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