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Homework Help: Calculation of equivalent resistance

  1. Sep 13, 2017 #1
    1. The Problem Statement

    Calculate the equivalent resistance between O and the circumference. Each wire has 24 ohm resistance and the circumference has zero resistance.

    2. Relevant equations

    Not needed.

    3. Attempt at solution
    I tried to use symmetry to solve this problem. I understand that we can break the network into half and every resistance except those on the diameter will become 12 ohm. What should I do next? View attachment 211003

    Attached Files:

    Last edited by a moderator: Sep 13, 2017
  2. jcsd
  3. Sep 13, 2017 #2


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    2017 Award

    Staff: Mentor

    There is much more symmetry to exploit.
  4. Sep 13, 2017 #3
    Thanks, mfb. I finally got the answer after three folds.
  5. Sep 13, 2017 #4
    Hello ,

    This is quite an interesting problem .

    Is equivalent resistance 6 Ohm ?
  6. Sep 14, 2017 #5
    Hi Conscience,

    Yes. you're right. The answer is 6 ohm.
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