resistance between points

Discussion in 'Homework Help' started by fran1942, May 17, 2011.

  1. fran1942

    Thread Starter Member

    Jul 26, 2010
    58
    0
    Hello, we have been told the resistance between points A and B is 2.259 Ohm, and the resistance between points A and C is 1.543 Ohm.
    The problem is I cant see how this calculates up.
    Can someone please help me understand ?

    Thanks kindly for any assistance.
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Post what you have done to find RAB. RAB=2.259 ohms is correct BTW.
     
  3. narayan

    New Member

    May 17, 2011
    3
    0
    this is what the answer for resistance between AB
     
  4. narayan

    New Member

    May 17, 2011
    3
    0
    you just concentrate on solving problems related to resistive networks..
     
  5. fran1942

    Thread Starter Member

    Jul 26, 2010
    58
    0
    thanks guys for that, Narayan I follow your diagram for A-B but I just dont see how I could do it differently to calculate resistance between A & C.

    Could you please tell me how I could do A to C ?

    Thanks kindly.
     
  6. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,388
    1,605
    narayan did an excellent job for you, why don't you look at what he did?

    Hint: look at how he simplified the network in the bottom left corner. Try to solve that for yourself for A to C.
     
  7. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    One trick is to redraw the circuit in a more structured manner to make it clearer as to what series / parallel combinations exist in the overall layout.

    I've made an attempt at redrawing in such a manner in the attachment.

    This might help ....???
     
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