11. Such measurement device is called electromagnetic force restoration sensor. 12. :The stick is held together by the electromagnetic force . 13. This, too, is the action of the electromagnetic force , together with the Pauli exclusion principle. 14. Garrett created a power-lance which fired heat beams, electrical charges, and concussive electromagnetic force beams. 15. In QED, the electromagnetic force between two electrons is caused by an exchange of photons. 16. Similarly, a number known as the fine structure constant characterizes the strength of electromagnetic forces . 17. The messenger particle for the electromagnetic force is photons. 18. The diagrams showed that the electromagnetic force is the interaction of photons between interacting particles. 19. Are gravity, electromagnetic forces , quantum or relativistic effects important? 20. The strong, weak, and electromagnetic forces can all be understood as arising from gauge symmetries.
