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My name is Gracia and I am conducting a statistics investigation. I am measuring the electrical resistance of human body by multi-meter and comparing the measurements from intermediate students to senior students.
I have found that the senior students (aged 16-18) generally have greater electrical resistance than intermediate students. (aged 12-13)
Also, my parents electrical registances were also much higher than mine or my brothers.
I was wondering why the human electrical resistance increases as the age increases?
I will be so much appreciated if you can answer my question.
- Gracia (age 18)
Carmel College, New Zealand
Where are you measuring resistance between? Maybe a finger on one hand
to a finger on another? Obviously the results depend a lot on what type
of measurement you're making, especially since a lot of the resistance
often is found near the contact between the probe and the skin. It can
depend a lot on how sweaty someone's skin is.
That said, if your results are consistent, I can guess a possible
reason. A lot of us (e.g. me) get fat as we get older. Fat is a poor
(republished on 08/02/06)
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