Electrostatic Field

  • Teruo Matsushita
Part of the Undergraduate Lecture Notes in Physics book series (ULNP)


When we touch a metal doorknob after walking on a carpet on a dry day, we sometimes feel a shock on the fingertips as a small crackle. If it is dark, we can see a spark when inserting a key into a keyhole. This is the same phenomenon as thunder. This phenomenon is brought about by electric charge in substances. The usual frictional electricity we experience also comes from electric charges.


Electric Charge Electric Potential Field Line Electric Field Strength Point Charge 
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Copyright information

© Springer Japan 2014

Authors and Affiliations

  • Teruo Matsushita
    • 1
  1. 1.Department of Computer Science & ElectronicsKyushu Institute of TechnologyIizukaJapan

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