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formulas:lorentz_force_law [2018/04/14 10:26] aresmarrero [Concrete] |
formulas:lorentz_force_law [2018/05/13 09:18] (current) jakobadmin ↷ Page moved from equations:lorentz_force_law to formulas:lorentz_force_law |
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<tabbox Concrete> | <tabbox Concrete> | ||
- | ---- | ||
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**Derivation** | **Derivation** | ||
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&= e\left(\frac{\partial A_j}{\partial q^i} - \frac{\partial A_i}{\partial q^j}\right)\dot{q}^j . | &= e\left(\frac{\partial A_j}{\partial q^i} - \frac{\partial A_i}{\partial q^j}\right)\dot{q}^j . | ||
\end{align*} | \end{align*} | ||
- | Here, term in parentheses is $\fvect{F}_{ij}=$ the electromagnetic field, $F=dA$. Therefore, the equations of motion are | + | Here, term in parentheses is $F_{ij}=$ the electromagnetic field, $F=dA$. Therefore, the equations of motion are |
\begin{equation} | \begin{equation} | ||
- | \boxed{ | + | m\frac{d v_i}{dt} = e F_{ij}\dot{q}^j, |
- | \eqngapabove \gapleft | + | |
- | m\frac{d v_i}{dt} = e\fvect{F}_{ij}\dot{q}^j, \quad\text{(Lorentz force law)} | + | |
- | \gapright \eqngapbelow | + | |
- | } | + | |
\end{equation} | \end{equation} | ||
- | which we call the Lorentz law.) | + | which we call the Lorentz law. |
<tabbox Abstract> | <tabbox Abstract> |