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Q&A Why is the resistance of water so high and still so dangerous?

Measuring the resistance of water from my tap I got 500kOhm. Adding considerable amount of salt brought it down to 20kOhm: The question I have is why water is such a danger for short circuits if t...

4 answers  ·  posted 3y ago by Kranulis‭  ·  edited 8mo ago by Lorenzo Donati‭

Question power
#2: Post edited by user avatar Lorenzo Donati‭ · 2023-07-26T18:51:40Z (8 months ago)
Made the title more coherent with the content of the post, while trying to preserve its original form.
  • Why is the resistance of water so high?
  • Why is the resistance of water so high and still so dangerous?
![Image alt text](https://electrical.codidact.com/uploads/JRTMMSgBLXidewc8v3GShRjC)Measuring the resistance of water from my tap I got 500kOhm. Adding considerable amount of salt brought it down to 20kOhm:


The question I have is why water is such a danger for short circuits if the resistance is so high?

Is there an issue with the measurement technique, or are there other reasons?
#1: Initial revision by user avatar Kranulis‭ · 2021-04-10T14:39:34Z (almost 3 years ago)
Why is the resistance of water so high?
![Image alt text](https://electrical.codidact.com/uploads/JRTMMSgBLXidewc8v3GShRjC)Measuring the resistance of water from my tap I got 500kOhm. Adding considerable amount of salt brought it down to 20kOhm:


The question I have is why water is such a danger for short circuits if the resistance is so high?

Is there an issue with the measurement technique, or are there other reasons?