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/Teste

Formule

• moment electric

${\vec {p}}=\sum _{i}q_{i}{\vec {x}}_{i}$ ${\vec {p}}=\int \rho ({\vec {x}}){\vec {x}}dV$ ${\vec {p}}=q{\vec {d}}$

• inducție electrică/câmp deplasare electrică

• flux electric

d \ Phi_E \

• vorticitate

${\vec {\omega }}={\vec {\nabla }}\times {\vec {v}}.$

${\frac {D{\vec {\omega }}}{Dt}}={\frac {\partial {\vec {\omega }}}{\partial t}}+({\vec {V}}\cdot {\vec {\nabla }}){\vec {\omega }}=({\vec {\omega }}\cdot {\vec {\nabla }}){\vec {V}}-{\vec {\omega }}({\vec {\nabla }}\cdot {\vec {V}})+{\frac {1}{\rho ^{2}}}{\vec {\nabla }}\rho \times {\vec {\nabla }}p+{\vec {\nabla }}\times \left({\frac {{\vec {\nabla }}\cdot {\underline {\underline {\tau }}}}{\rho }}\right)+{\vec {\nabla }}\times {\vec {B}}$

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