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Thread: Resistor Puzzle

  1. #1
    Senior Member BCNZ's Avatar
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    Default Resistor Puzzle

    Someone showed me this a few years ago and I didn't have time to solve it then. Who can work it out?

    All resistors are 1 ohm and assume exact tolerance, find the resistance between points A & B.




Look Here ->
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    I am lazy and googled the answer :P

    Last edited by ssrattus; 06-03-08 at 02:18 PM.

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    lmao

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    Very interesting Ssrattus.

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    Senior Member mickc's Avatar
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    and the answer is....

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    quicker to make it and measure it

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    Senior Member z80's Avatar
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    oops I have been fooled.

    it's 5/6th of R


    .
    Last edited by z80; 06-03-08 at 02:35 AM.

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    Quote Originally Posted by ssrattus View Post
    I am lazy and googled the answer :P

    Well I'm glad they had a big digital read out of it
    because I didn't understand a word of it LOL
    Last edited by ssrattus; 06-03-08 at 02:18 PM.
    When you do things right, people won't be sure that you have done anything at all

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    Junior Member wallaroo's Avatar
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    screw that, i'm with ssrattus and yos

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    Quote Originally Posted by best4less View Post
    Well I'm glad they had a big digital read out of it
    because I didn't understand a word of it LOL
    ooohh, b4l, whats not to get "reciprical of the sum of the recipricals" easy!

    ssrattus, thats the prob with the net these days everythings only a click away and it's gospel, weeeell not quite, the page you quoted was using 1kohms, this is stated as using 1ohms, so order of magnitude one step down.

    wallaroo, lazy bugger, use your head, remember "clever nation"!
    When I explained to the guy what avatar I wanted, that wasn't what I meant!

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    Quote Originally Posted by iwacelect View Post
    ssrattus, thats the prob with the net these days everythings only a click away and it's gospel, weeeell not quite, the page you quoted was using 1kohms, this is stated as using 1ohms, so order of magnitude one step down.
    I am clever enough to by divide their answer by 1000.

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    Quote Originally Posted by ssrattus View Post
    I am clever enough to by divide their answer by 1000.
    but 64.42 ohms, not even if they were in series
    When I explained to the guy what avatar I wanted, that wasn't what I meant!

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    Quote Originally Posted by iwacelect View Post
    but 64.42 ohms, not even if they were in series
    64.42 is not the answer it is the page number... the answer is 0.833 recurring or 5/6.

    I'll edit the url for you!

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    They could have been nastier and made them all different values

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    Quote Originally Posted by wallaroo View Post
    They could have been nastier and made them all different values

    yep, that would be fun!!
    When I explained to the guy what avatar I wanted, that wasn't what I meant!

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