éléctrostatique Flashcards

1
Q

champ def

A

espace ou l’on applique des loies

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2
Q

force electrostatique

A

Fel = qE = V/d en N
avec
E = Q / (4piepsi r^2) vur

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3
Q

distribution linéique de charge

A

dq= lambdadl
donc Q= lambda
l

avec lambda: densité linéique
dl: élément de longeur m
Q: la charge

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4
Q

distribution surfacique de charge

A

Q = sigma S

sigma :densite surfacique
S : surface en m^2

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5
Q

distributuin volumique de charge

A

Q = ro x V

ro : densite volumique
V : volume en m^3

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6
Q

potentiel electrique V

A

dans un champs electrostat engendre par une charge Q
V(r) = Q /(4piepsi r)
V(position M) = 1/4pier x (q1/r1 + q2/r2 + …)

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