Electric Forces презентация
Содержание
- 2. Lecture 8 Electrostatics Electric charge. Coulomb’s law. Electric field. Gauss’
- 3. Electric Forces Electric forces are dominant in the behavior of matter.
- 4. Electrostatics Electrostatics is the science of stationary charges. There exists
- 5. Charging by induction We have a neutrally charged conductor. Negatively charged
- 6. The Law of Conservation of Charge Charge of an isolated system
- 7. Elementary charges Elementary charges are electrons and protons. Usually only electrons
- 8. Coulomb’s law From Coulomb’s experiments, we can generalize the following properties
- 9. Coulomb’s Law The magnitude of the electric force is
- 10. In a vector form, the force exerted by charge q1 on
- 11. Forces of Multiple Charges Electrostatic force is a vector quantity, so
- 12. Electric Field In general: field forces can act through space, producing
- 14. Electric Field Vector The force exerted by q on the test
- 15. Continuous Charge Distribution Volume charge density Surface charge density Linear charge
- 16. Electric Field of a Uniformly Charged ring A ring of radius
- 17. dE is the field at point P on the x axis
- 19. Extreme Case Analysis So we found the electric field of a
- 20. Gauss’ Law The net flux of electric field through any enclosed
- 21. Electric Flux Ai is a vector, which magnitude represents the area
- 22. According to the Gauss’ theorem electric flux through any surface S1,
- 23. Electric Potential Energy For infinitesimal displacement ds the work done by
- 24. Electric Potential The electric potential at any point in an electric
- 25. Potential Properties Just as with potential energy, only differences in electric
- 26. Units in SI Charge Q C (Coulomb) Electric potential V J/C=V (volt) Electric field E N/C=V/m
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