r= E over R+r solve for r?

r= E over R+r solve for r

3 Answers

  • Anonymous
    8 years ago
    Best Answer

    r = E/(R+r) ---> r^2 + Rr - E = 0 , and use the quadratic formula to solve

  • Anonymous
    5 years ago


  • 3 years ago

    I=E/(R+r) multiply the two sides via (R+r) I(R+r) = E divide via I R+r = E/I subtract r R = E/I - r ^_^ M4tr!x - Yeah, yet I further various pointless steps, i become basically having a brainfart, so I made it less complicated

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