Bjr, j’ai besoin d’aide pour mes exercices en physique chimie numéro 14 et 20. Niveau 4 eme, merci!.... Pergunta de ideia deVmuradova256

Vmuradova256 @Vmuradova256

May 2019 1 108 Report

Bjr, j’ai besoin d’aide pour mes exercices en physique chimie numéro 14 et 20. Niveau 4 eme, merci!

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MonsieurFirdown

Verified answer

Bonjour

14
♧a. Loi : U = R × I d'où :
● U --> volt
● R --> ohm
● I --> Ampère

♧b. Elle vaut 30 mA d'où 0,03 A

♧c. On a : R = 6 /0,03 = 200 Ω

Voilà ^^

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