at voltage gradients less than ionizing (30kv/cm), and with dry air, is there an agreed upon resistance (or maybe called resistivity) of air, ie ohms/meter? Does the concept make sense, ie since these concepts are statistical properties of molecular phenomena, at sufficiently low values ideas like temperature, etc become meaningless since there is not a large enough population for statistics to apply. thus, is there an accepted resistivity of air, can you tell me its value or point to a source?
2007-05-12 07:01:53 · 5 answers · asked by Richard K 3 in Science & Mathematics ➔ Physics
The best I could find with a short search was a broad range of 10^8 to 10^9 Ω∙m, with no reference to temperature, pressure, or relative humidity.
2007-05-12 07:55:23 · answer #1 · answered by Helmut 7 · 0⤊ 1⤋
Resistance Of Air
2016-11-12 10:43:54 · answer #2 · answered by overby 4 · 0⤊ 0⤋
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electrical resistance of air?
at voltage gradients less than ionizing (30kv/cm), and with dry air, is there an agreed upon resistance (or maybe called resistivity) of air, ie ohms/meter? Does the concept make sense, ie since these concepts are statistical properties of molecular phenomena, at sufficiently low values ideas like...
2015-08-06 11:37:01 · answer #3 · answered by ? 1 · 0⤊ 0⤋
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Hello, Trevor. The answer is Yes, the electrical resistance of air is proportional to the density. This is because the molecules of the various gasses will be closer to each other. However, as these gasses retain their individual identities and do not share valance electrons atom-to-atom. It only allows easier electron flow.
2016-04-01 05:22:10 · answer #4 · answered by Barbara 4 · 0⤊ 0⤋
Clean dry air has the resistance of how many ohms
2014-01-26 19:12:36 · answer #5 · answered by Helping 1 · 0⤊ 1⤋
If there aren't any ions in the gas the resistance is infinity .
resistance <> resistivity
resistance = resistivity * length / surface
Statistical physics isn't the only way to see the world
:-)
2007-05-12 08:04:28 · answer #6 · answered by Tom 3 · 1⤊ 2⤋