Formules électricité

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Description and Tags

Physics

Electric Charge, Field, & Potential

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12 Terms

1
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q (charge)

1,6 . 10⁻⁹ C

2
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F (force de coulomb)

F = k . q . Q / d²

3
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k dans air ou vide

k₀ = 9 . 10⁹

4
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E (champ électrique)

E = k . Q / d²

5
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Ep (combinaison de champs)

Ep = E₁ + E₂

6
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εpA ( énergie potentielle électrique)

εpA = W ∞→A

7
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VA (potentiel électrique)

VA = W ∞→A / q

8
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UAB (différence de potentiel)

UAB = W A→B / q

9
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W (travail)

W = Fel . d = q . E . d

10
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lien entre U et E

U = E . d E = U / d

11
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I (intensité)

I = q / t

12
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P (puissance)

P = U . I