All Questions
4
questions
5
votes
2
answers
3k
views
Deriving the Lorentz force from velocity dependent potential
We can achieve a simplified version of the Lorentz force by
$$F=q\bigg[-\nabla(\phi-\mathbf{A}\cdot\mathbf{v})-\frac{d\mathbf{A}}{dt}\bigg],$$
where $\mathbf{A}$ is the magnetic vector potential and ...
- 539
10
votes
1
answer
2k
views
Is there any potential associated with magnetism?
Can anybody please tell me if magnetism is a conservative force or if there is a field associated with it? How to reason? One thing I know is that the work done by a magnetic force is equal to $0$.
- 103
0
votes
2
answers
665
views
Derivation of Lagrangian of electromagnetic field from Lorentz force
I was trying to derive Lagrangian for the electromagnetic field from Lorentz's force formula
$$\mathbf{F}= q(\mathbf{E} + \mathbf{v}\times \mathbf{B})$$
I have to find the potential by using the line ...
- 59
0
votes
1
answer
230
views
Deriving Konopinski's Operational Definitions of Scalar and Vector Potential
In "What the electromagnetic vector potential describes", E. J. Konopinski asserts:
Operational definitions of $\phi$, $\mathbf{A}$ should now be expected to stem from the equation of ...
- 1,357