Basic Question

Discussion in 'General Electronics Chat' started by WHWells, Sep 27, 2005.

  1. WHWells

    Thread Starter New Member

    Sep 26, 2005
    4
    0
    The last time I studied any electronics was in 8th grade. Transitor radios were somewhat new back then, but I still consider DVD players some what new. Any way I remember that we have volts, amps, ohms and watts but I really do not remember how the basic relationship was stated. I did not see it in any of thge modules that I reviewed so far.

    Will someone please remind me?
     
  2. pebe

    AAC Fanatic!

    Oct 11, 2004
    628
    3
    You couldn't do better than look at the tutorials on this site.

    http://www.allaboutcircuits.com/vol_1/index.html
     
  3. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    143
    As a summary:

    I = V/R

    P = VI

    From the above two equations you can show:

    P = V^2/R

    P = I^2R

    For more information, and a deaper look into the above equations for circuits with capactive and inductive elements follow the link posted by pebe above.
     
  4. WHWells

    Thread Starter New Member

    Sep 26, 2005
    4
    0
    Thanks,

    I now feel not only forgetful but stupid. I completely missed most of the units. I went right from the first unit in DC to AC.

    I thought the material was light. Doh!
     
  5. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    143
    More specifically for your enquiry, you should focus on the following chapter of the DC section: DC: Chapter 2

    You can alway post back if you have a specific question or query.
     
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