Direction of current in distribution network

Discussion in 'Homework Help' started by Cerkit, Sep 25, 2013.

  1. Cerkit

    Thread Starter Active Member

    Jan 4, 2009
    275
    3
    Hi.

    How does one intuitively understand current direction in AC?
    Confused as I just view the current as going back and forward all the time.

    Thanks
     
  2. daviddeakin

    Active Member

    Aug 6, 2009
    207
    27
    It does go back and forth. During circuit analysis what we usually look at is the direction of each current relative to the others.

    For example, if we happen to find that one current is flowing in the opposite direction to another, then the same is still true when they eventually change direction; they're still opposite each other.

    Or you might prefer to imagine that when we do our circuit anaysis we are freezing the currents at a specific moment in time, and then looking at their relative directions.
     
  3. WBahn

    Moderator

    Mar 31, 2012
    17,736
    4,789
    +1

    And we are also concerned with the current directions relative to the voltages at any given moment in time, as this determined the amount of power at play and whether it is being delivered or absorbed.
     
  4. ScottWang

    Moderator

    Aug 23, 2012
    4,853
    767
    Is this what you want to know?
    The R1 is designed for discharge when the Load(RL) didn't connected to the power.

    [​IMG]
     
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