Dipôles

Question 1

Moment électrostatique

Answer 1

P=q*NP avec q(tot)=0

P= ∑qi * OAi

Question 2

Moment magnétostatique

Answer 2

M= 1/2 ∬OP ^ J(v)(P).dTo(P)

Question 3

Potentiel V

Answer 3

V= P.Ur / ( 4πɛ0r² )

Question 4

Potentiel vecteur A

Answer 4

A(M) = µ0 / (4π*r²) M ^ Ur

Question 5

Champ Er, E, Eθ, Eφ

Answer 5

Er = 2P*cos(θ) / 4π*ɛ0*r^3
Eθ = P*sin(θ) / 4π*ɛ0*r^3
Eφ = 0

Question 6

Champ E total :

Answer 6

E = 1 / 4πɛ0r^3 * (3(P.Ur)Ur - P)

Question 7

Champ B total :

Answer 7

B = µ0 / 4π*r^3 * (3(M.Ur)Ur - M)

Question 8

Couple Γ de E

Answer 8

Γ = P ^ Eext

Question 9

Couple Γ de B

Answer 9

Γ = M ^ Bext

Question 10

Energie potentielle de E

Answer 10

Ep = - P.Eext

Question 11

Energie potentielle de B

Answer 11

Ep = - M.Bext