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Electrostatics Review

Electrostatics Review. What is the charge of one electron?. Answer :. -1.6E-19 C. Coulomb’s law says that the force between any two charges depends on what?. Answer:. The sizes of the charges and inversely on the square of the distance between the charges F = kqq /d2.

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Electrostatics Review

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  1. Electrostatics Review

  2. What is the charge of one electron?

  3. Answer: • -1.6E-19 C

  4. \Coulomb’s law says that the force between any two charges depends on what?

  5. Answer: • The sizes of the charges and inversely on the square of the distance between the charges • F = kqq/d2

  6. Two charges are separated by a certain distance. If the magnitude of each charge is doubled, the force on each charge is…..

  7. Answer: • quadrupled

  8. When the distance between two charges is halved, the electrical force between the charges….

  9. Answer: • Quadruples

  10. What does electrical forces have that gravitational forces do not?

  11. Answer: • Repulsive interactions

  12. What are charges doing in a conductor and insulator?

  13. Answer: Conductor – Moving freely • Insulator – Not moving at all

  14. What are semiconductors?

  15. Answer: • Can be insulators • Can be conductors • Have impurities to change their electrical properties

  16. How do you charge by induction?

  17. Answer: • Have a charged rod opposite the charge you want the object to be-bring it close to the object. • Ground the object • The object is now charged

  18. A charged balloon will stick to a neutral wall, which demonstrates charge….

  19. Answer: • Polarization

  20. Two charged particles held close to each other are released. As the particles move, the velocity of each increases. Therefore, the particles have what kind of charges?

  21. Answer: • Can not determine them

  22. If the acceleration between two charged particles decreases, the particles have what kind of charges?

  23. Answer: • The same

  24. When comparing gravitational fields with electric fields, the magnitude of g is most like what in the electrical field?

  25. Answer: • The strength of the electric field

  26. What will happen to the electrical potential energy of a charged particle in an electric field when the particle is released?

  27. Answer: • Energy is transformed into KE

  28. When work is done to move two like charges close together, that work is the what in the system?

  29. Answer: • Electric Potential

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