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Internal resistance understanding

  1. Mar 20, 2013 #1
    Hello,
    I'm having difficulty trying to understand internal resistance of any component. I don't understand how exactly the internal resistance affects the current and what exactly is the terminal pd?

    And for calculating resistance, voltage, pd, emf, current and all those basic things - what are the basic formulas that could help?

    Thanks,
    Aakeen
     
  2. jcsd
  3. Mar 20, 2013 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Start here: Battery With Internal Resistance
     
  4. Mar 20, 2013 #3
    Thank you!
     
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