# Electromagnetic self-force of a point charge from the rate of change of the momentum of its retarded self-field

## TL;DR

This paper derives the electromagnetic self-force of a point charge moving rectilinearly directly from the rate of change of its retarded self-field's momentum, avoiding explicit infinity removal.

## Contribution

It presents a novel derivation of the self-force without the traditional need for regularization or renormalization techniques.

## Key findings

- Self-force obtained from momentum rate of change
- No explicit removal of infinities needed
- Method applicable to rectilinear motion

## Abstract

The self-force of a point charge moving on a rectilinear trajectory is obtained, with no need of any explicit removal of infinities, as the negative of the time rate of change of the momentum of its retarded self-field.