• Warl0k3@lemmy.world
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    5 hours ago

    No, there is absolutely current flowing when you touch both terminals, it’s just an incredibly tiny amount. You can do the math yourself and see, it’s a basic application of Ohms law. The formula is (I=V/R). The reason you feel the tingles from a 9 volt you lick vs one you touch with your finger is that the resistance is much lower when licked, allowing more current to be produced - but the resistance is not infinite when you touch it with your finger, it’s just high enough that you do not notice the tingling from the small amount of current that results from a circuit with such high resistance (also it travels across the surface and on a much less sensitive part of your anatomy etc. etc.)

    • Yondoza@sh.itjust.works
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      2 hours ago

      Shorts are unintended low impedance paths.

      it’s just an incredibly tiny amount

      Indicates you are not describing a short.

      Sure, there is technically current flowing, but it is small enough to be considered an open circuit for engineering purposes. There is leakage current for every insulator, we don’t call it a short.