dependant voltage and current sources

Discussion in 'Homework Help' started by CyborgBunny, Aug 2, 2009.

  1. CyborgBunny

    Thread Starter Active Member

    May 29, 2009
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    how would be there a voltage source and a source for current

    a 1.5 V battery , what is it , a voltage source , a current source ...


    what is the difference between a (A source or V source) and a normal battery ... :confused: .
     
  2. loosewire

    AAC Fanatic!

    Apr 25, 2008
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    Voltage source.
     
  3. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    An ideal battery is a voltage source. It will supply the voltage without a voltage drop at higher currents.
    A practical battery is a voltage source with a resistor (the internal resistance) in series.
    The voltage will drop at higher currents due to the internal resistance.

    Greetings,
    Bertus
     
  4. CyborgBunny

    Thread Starter Active Member

    May 29, 2009
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    what is a current suorce then ?
     
  5. loosewire

    AAC Fanatic!

    Apr 25, 2008
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    You getting above my I Q level.
     
  6. CyborgBunny

    Thread Starter Active Member

    May 29, 2009
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    woh , i think a current source is an electronic device , not a normal battery ...

    http://en.wikipedia.org/wiki/Current_source

    why would we need a current source while we have voltage sources ?

    my proffessor didn't know how to answer this , or thought that it's not important for us ...
     
  7. bertus

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    Apr 5, 2008
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  8. CyborgBunny

    Thread Starter Active Member

    May 29, 2009
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    i grasp the concept in general now , thanks :) .
     
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