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Homework Help: Electric Current

  1. Apr 6, 2010 #1
    Which of the following would be considered a current?

    a negative ions flowing in a liquid
    b electrons moving in a vacuum
    c positive ions flowing in a liquid
    d electrons moving in a wire
    e ions moving in a vacuum

    I presume all of these would be electric currents after reading this definition...

    Electric current means, depending on the context, a flow of electric charge (a phenomenon) or the rate of flow of electric charge (a quantity).[1] This flowing electric charge is typically carried by moving electrons, in a conductor such as wire; in an electrolyte, it is instead carried by ions, and, in a plasma, by both.[2]

    "flow of electric charge"

    I believe a-e are all electric charges.

    Please help me confirm this... Thank you in advance for any help you can give.
  2. jcsd
  3. Apr 6, 2010 #2
    Current is simply movement of charged particles, usually caused by a potential difference (voltage). All of these are examples of current, despite the charge.
  4. Apr 7, 2010 #3
    All of those answers are would be considered currents. Fact.
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