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Same ground, different voltages?

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matsadona:
The potential difference between two points can be illustrated like this:

Louis Tully:
.

lilshawn:

--- Quote from: matsadona on January 17, 2014, 02:47:08 am ---The potential difference between two points can be illustrated like this:

--- End quote ---

not ground...water  :laugh2:

But no, that's illustrating it perfect.

matsadona:

--- Quote from: lilshawn on January 17, 2014, 10:15:42 am ---
--- Quote from: matsadona on January 17, 2014, 02:47:08 am ---The potential difference between two points can be illustrated like this:

--- End quote ---

not ground...water  :laugh2:

But no, that's illustrating it perfect.

--- End quote ---
Thanks. I was about to add a diver below the surface also in order to illustrate negative voltages...  :D

cw:
you might use both grounds to make a ground loop. In the event of a break in the ground wire you will still be up and running.  I wire all my cps like that..

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