T3 Chap 1 Flashcards

1
Q

Loi D’ohm

A

U= R × I

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2
Q

Sens conventionnel du courant

A

Du + vers le -

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3
Q

Sens de déplacement des électrons dans un circuit électrique

A

Du - vers le +

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4
Q

L’intensité du courant électrique (I)

A

I = Q/◇t

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5
Q

U= E

A

Force electromotrice

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6
Q

Tension d’un générateur réel

A

U = E -r×i

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7
Q

Puissance electrique

A

P=U×I

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8
Q

Énergie utilisé ou fournie

A

E=P×◇t

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9
Q

Rendement d’énergie

A

Ŋ(n qui descend) = E utile/ E reçu
Ŋ= P utile/ P reçu

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