ctamblyn
Data Ghost
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No, you can assume that the field vector at a given point is defined as the force vector per unit charge that would be exerted.
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In full: In a given inertial frame, the E field is equal in value to the force per unit charge which would be exerted on a stationary test charge. It is fundamentally and utterly point-missingly wrong to claim that E is simply "the" force, as if the electromagnetic field somehow generated a single, well-defined force at each event in spacetime (or even a single, well-defined pair of forces; that is also completely wrong).
As I stated in an earlier post, the relationship between E, B and the force on a particular charged particle having a particular velocity is much more complicated than you make out, being given by the Lorentz force law. In addition, as I also stated above, it makes no sense to speak of "the force" at points where there is no body to act upon, and yet we can and do speak of the E and B fields at such points (or, if you insist, the electromagnetic 2-form).
To return to another sub-topic which I'd prefer didn't get dropped just yet - perhaps when you return from your 2-week suspension you could get around to addressing the lack of predictive power of these loopy photon models?
! The particle only exists at x. It has no extent or size. Thus it is a point particle.