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Le transformateur
Quiz
•
Physics
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Professional Development
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Medium
adil mazouz
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
le chargeur du telephone contient un transformateur abaisseur
vrai
faux
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
le transformateur se compose par deux partie (primaire & secondaire)
vrai
faux
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
le transformateur peut fonctionner dans les deux sens
vrai
faux
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
le Nombre des bobines dans un transformateur est :
1
2
4
6
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
le rapport d'un transformateur est :
U1 / U2
I2 / I1
U2 / U1
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Le rapport de transformation est variable :
Vrai
Faux
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La tension d'entrée d'un chargeur du téléphone est :
380 v
220 v
5 v
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