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Stan’s Legacy

Leak resistance across a spherical cell, two ways

The same calculation run twice, side by side. Change anything on either side and the difference is shown output by output. This page is a link: both sets of numbers are in the address bar.

Side A open alone
in

The inner electrode's outside diameter.

in

The outer electrode's inside diameter.

µS/cm

What a conductivity meter reads.

Side B open alone
in

The inner electrode's outside diameter.

in

The outer electrode's inside diameter.

µS/cm

What a conductivity meter reads.

Swap sides

What changed

The two sides are the same. Change something on either.

Output A B B against A
R Leak resistance 8.355 kΩ 8.355 kΩ same

Side A, with its numbers

8.355=12π·5µS/cm(11in13in)
LaTeX
8.355\,\mathrm{kΩ} = \frac{1}{2\pi \cdot 5\,\mathrm{µS/cm}} \left( \frac{1}{1\,\mathrm{in}} - \frac{1}{3\,\mathrm{in}} \right)

Side B, with its numbers

8.355=12π·5µS/cm(11in13in)
LaTeX
8.355\,\mathrm{kΩ} = \frac{1}{2\pi \cdot 5\,\mathrm{µS/cm}} \left( \frac{1}{1\,\mathrm{in}} - \frac{1}{3\,\mathrm{in}} \right)