On donne : E1 = 12 V ; E2 = 5 V ; R1=R2= 1 Ω ; R3= 4 Ω ; I1 = 2 A
1. Calculer la tension aux borne de R1.
2. Calculer la valeur de R4.
3. Calculer les puissances dissipées dans R1 et R2.
Toucher pour afficher la solution
Exercice N° 2
Soit le circuit suivant :
On donne : R1 = 1kΩ, R2 = 2kΩ, R3 = 4kΩ, R4 = R5 = 3kΩ, la tension aux bornes de la résistance R2, UR2 = 4V, et le courant I3 = 2mA.
Calculer E et R
Toucher pour afficher la solution
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Exercice N° 3
Soit le circuit suivant :
On donne : E1 = 12 V ; E2 = 8 V ; E3 = 6 V ; R1=R2= 2 Ω ; R3= 3 Ω.
· Calculer la différence de potentiel dans chaque résistance
Toucher pour afficher la solution
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Exercice N° 4
Soit le circuit suivant :
On donne : R1 = 1kΩ, R2 = 2kΩ, R3 = 4kΩ, R4 = R5 = 3kΩ, la tension aux bornes de la résistance R2, UR2 = 4V, et le courant I3 = 2mA.
Calculer E et R
Toucher pour afficher la solution
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Exercice N° 5
Soit le circuit suivant :
I3 = 2mA, E3 = 18 V ; R1= 1 KΩ ; R3= 1,5 KΩ UCD = 7 V
Calculer la valeur de la résistance R2.
Toucher pour afficher la solution
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