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Alternating Current

  • Noel M. Morris
Chapter
Part of the Macmillan Master Series book series (MACMMA)

Abstract

As mentioned earlier, an alternating quantity is one which reverses its direction periodically, being in one direction (say the ‘positive’direction) at one moment and in the opposite direction (the ‘negative’ direction) the next moment. The frequency of alternations can be as low as once every few seconds or as high as once every few nanoseconds \( (1\,{\text{ns = 1}}{{\text{0}}^{\text{ - }}}^9{\text{ s or }}\frac{1}{{1\,000\,000\,000}}\,{\text{s)}} \) .

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Copyright information

© Noel M. Morris 1985

Authors and Affiliations

  • Noel M. Morris
    • 1
  1. 1.North Staffordshire PolytechnicUK

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