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In Reply to: Re: The question was resistivity. posted by Steve Eddy on March 27, 2007 at 14:52:08:
Hi.Basing on 1,000,000,000R/cm3, I deduce electrical resistance per linear mm is 100R (cube root of the above figure).
You said I was wrong. So what is the correct insulation resistance per mm thickness of cotton ???
Follow Ups:
Basing on 1,000,000,000R/cm3, I deduce electrical resistance per linear mm is 100R (cube root of the above figure).
Uh, 100 is the cube root of 1,000,000,000? I think you need new batteries for your calculator.
se
Hi.My calculation based on cotton's 100 million ohms/cm3 is 100R/mm.
You said it was "nonsense".Now you come up with less than half of my calculated value, only 42R.
So your's a "Double Nonsense".I got the impression neither of both insulation resistance numbers is correct.
Insulation resistance is in the range of mega ohms. Under a test voltage 250VDC, min. insulation resistance is 250KR. For 500VDC, 500KR, & for 1KV, 1MegaR. If a cotton wire could handle up to 500VDC,
its insulation resistance got to be in maga ohm range.So how you arrived this lowly 42R?
c-J
So how you arrived this lowly 42R?
I didn't. Deep Thought did. And it's not 42R, it's simply, forty-two.
se
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