Can a point charge feel the force of its own electric field?
In various texts it is always mentioned about the force on a point charge in an external electric field. I think the particle does feel its own field, because it's not that the field of other charges are painted in visible color and that of its own are ultraviolet that it can't see itself.
Consider the two statements, both for electrostatic conditions.
- A charge can feel external fields.
- A charge can feel any electric field (contribution of external plus self)
Both the above statements are consistent if we consider force on a charge in electrostatic field. Statement #1 is what is found in texts . Statement #2 is also consistent in the sense that when there is no electric field its own field (which is also the total field) are symmetrical radially out and hence no net force on the point charge. Also when there is another charge in the vicinity, then the net field no longer remains symmetrical and hence the point charge experiences force.
Which of the statements above is more correct if we take other physical quantities and phenomena into account, not only the force experienced?