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physics.class-ph2024
Radiation reaction on an accelerating point charge
Jerrold Franklin
A point charge accelerating under the influence of an external force emits electromagnetic radiation that reduces the increase in its mechanical energy. This causes a reduction in…
physics.class-ph2024
What is the force on a magnetic dipole?
Jerrold Franklin
We show that attempts to modify the force on a magnetic dipole by introducing either hidden momentum or internal forces are not correct. The standard textbook result ${\bf F=\nabla…