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Re: Calculating resistance (erratum)



Was I the only one to read the formula incorrectly. To avoid
confusion let me rewrite it in a slightly different form:

David Bowman wrote:

R = [rho]*arccosh(L/(2*a))/([pi]*d) .

In this equal radius case the argument of the inverse hyperbolic
cosine function is essentially the ratio of the distance between
the centers of the circles/cylinders to their diameter--*not*
their radius.

R = (rho / (Pi*d)) * arccosh(L/(2*a)).

For example, arccosh(20)=3.68825