query: Why does the term $-\frac{q}{c}\frac{d\vec{A}}{dt}$ play no part in the Lagrangian of a charged particle in an electromagnetic field?
positive_passages.docid: 27296
positive_passages.text: Derivation of Lagrangian of electromagnetic field from Lorentz force
negative_passages.docid: 93539
negative_passages.text: Why is $M\frac{dv}{dt} = v_{rel} .\frac{dm}{dt}$ correct and $(M - dm)\frac{dv}{dt} = v_{rel} .\frac{dm}{dt}$ wrong?
negative_passages.docid: 35409
negative_passages.text: Massless charged particles
negative_passages.docid: 106119
negative_passages.text: Why is there no permittivity-type constant for gravitation?
negative_passages.docid: 116427
negative_passages.text: $(c^{\mu}\partial_{\mu}-m)\phi(x)=0$ not Lorentz-invariant?
negative_passages.docid: 18054
negative_passages.text: Is there a proof from the first principle that the Lagrangian L = T - V?
negative_passages.docid: 137302
negative_passages.text: Why do we calculate the curl of curl of the electric field and what does it mean physically?
negative_passages.docid: 73829
negative_passages.text: Coulomb's Law: why is $k = \dfrac{1}{4\pi\epsilon_0}$
negative_passages.docid: 28618
negative_passages.text: Deriving Heaviside-Feynman formula for the electric field of an arbitrarily moving charge from Lienard-Wiechert potential
negative_passages.docid: 112458
negative_passages.text: Moving conductors in magnetic fields: is there electric field or not?
negative_passages.docid: 87391
negative_passages.text: Integral version of Ampere's law: why current outside the surface does not contribute to $\oint B\cdot d\ell$?
negative_passages.docid: 84650
negative_passages.text: Electric Field from charged sphere within another charged sphere does not reinforce?
negative_passages.docid: 79319
negative_passages.text: force on a moving charge in magnetic field
negative_passages.docid: 52102
negative_passages.text: Do electrostatic fields really obey "action at a distance"?
negative_passages.docid: 112628
negative_passages.text: What is the origin of the Dirac delta term in the dipole electric field?
negative_passages.docid: 30211
negative_passages.text: Path followed by a free test charge in an electric field region represent the electric lines of forces?
negative_passages.docid: 12924
negative_passages.text: How to derive Maxwell's equations from the electromagnetic Lagrangian?