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-   -   E=l(r-r)/2r (https://www.askmehelpdesk.com/showthread.php?t=517406)

  • Oct 16, 2010, 06:43 PM
    Welshdodds
    E=L(R-r)/2R
    Make r subject
  • Oct 16, 2010, 11:56 PM
    Unknown008

    1. Cross multiply
    2. Distribute the L(R-r)
    3. Bring all the terms in R on one side and all the others on another side of the equal sign.
    4. Factorise R.
    5. Divide by the coefficient of R.

    Post what you get! :)

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