• JohnDClay
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    2 days ago

    There is if you have a potentiometer and a steady enough hand!

      • xthexder@l.sw0.com
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        1 day ago

        Based on some rough calculations… no. A precision of 0.0000000000001 ohms is 1000x less than the resistance of 1um of copper with a diameter of 1cm (A piece of wire 10,000x wider than it is long). I’m sure a few molecules of air between your contact points would cause more noise in the measurement.

      • Adalast@lemmy.world
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        2 days ago

        I thought it had to do with physicists working off theoretical calculations finding precise values for the circuit and not realizing that components come in discrete values.

        • anomnom
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          1 day ago

          Yeah, but they could just calculate the right mix of parallel and series discrete resistors to get there.

          It’s gonna make a long BOM though.

          • Adalast@lemmy.world
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            22 hours ago

            Lol, I was actually going to add that but decided it would be too pedantic if I said it myself.