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human resistance, from general information sources it is known that it is within 1k?.

andrzej59432 33120 6
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  • #1 16907252
    andrzej59432
    Level 3  
    Hello.
    I would like to know how it is with human resistance, from general information sources it is known that it is within 1k?.
    Why do I not measure it with a multimeter on the range of up to 2000??
    It is only when I switch to the 2000k? range that it indicates the value of about 700, that is 700k?.

    Measurement is done by gripping the red probe with one hand and the black one with the other.
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    #2 16907265
    Rezystor240
    Level 42  
    andrzej59432 wrote:
    Why do I not measure it with a multimeter on the range of up to 2000??
    It is only when I switch to the 2000k? range that it indicates the value of about 700.


    Everyone has a different 'own resistence' - if you can call it that.
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    #3 16907270
    Xantix
    Level 41  
    andrzej59432 wrote:
    I would like to know how it is with human resistance, from general information sources it is known that it is within 1k?.
    Why do I not measure it with a multimeter on the range of up to 2000??

    1000 ohms is the resistance of the human body "inside" that is after piercing the skin, which is the best insulator in the human body. However, the skin itself (specifically its top layers with the epidermis), if it is dry, has a resistance of the order of magnitude, so the measurement in the manner given by you gives you completely different results.
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    #4 16907271
    Rezystor240
    Level 42  
    andrzej59432 wrote:
    Measurement is done by gripping the red probe with one hand and the black one with the other.


    Do the same, previously moistening your hands with regular tap water.
    The measurement will definitely be different.
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    #5 16907273
    sylweksylwina
    Moderator of Computers service  
    1k? is a conventional resistance, in quite unfavorable conditions. Normally with a dry undamaged skin the resistance will be much higher.
  • #6 16907288
    Rezystor240
    Level 42  
    I can give you a very simple example:
    When I have very dry hands, I can calmly hold cables with a potential of 60V.
    If I'm sweaty (water + salt) I already feel a power shock at the potential of 40V.
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  • #7 16907290
    andrzej59432
    Level 3  
    Thanks for the help.
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Topic summary

The discussion centers on the measurement of human body resistance using a multimeter. It is noted that individual resistance varies, with a typical value of around 1kΩ being referenced for the body after skin penetration, while dry skin can exhibit significantly higher resistance. The measurement technique, which involves gripping the probes with bare hands, can yield different results based on skin moisture levels. Users are advised to moisten their hands to obtain more accurate readings, as dry skin can lead to higher resistance values. The conversation highlights the impact of skin condition on electrical resistance and safety at different voltage levels.
Summary generated by the language model.
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