what do you think should be the minimum resistance in a circuit??
I am very curious to that please tell me!!!
4 years, 2 months ago
If you have a really short wire, the resistance will be close to \(0 \ \Omega\).
Also, superconductors have zero DC resistance.
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this means that wire would then have infinite current, how is that possible..
So, let's say we take a battery and short it out with a wire. The resistance of the wire plus the internal resistance of the battery is very tiny (but still positive). So, the current is just really large (but still finite).
I don't know much about superconductors, but that Wikipedia article says that when running a current through it, the voltage is the same at both ends. Hence, the resistance is 0.