Originally posted by plengo
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when you have the postive lead on the mg one would expect to see the DMM read Negative right if the cell is reading across ALL LAYERS OF MATERIALS TO ENSURE THE CELL CONDUCTION IS TRANS PLATE AND NOT INTERPLATE?
After you wet #20 cell it went negative on both the current and volts right? that is what you would expect I think. I ALWAYS have the NEGATIVE on MG and Positve on CARBON/COPPER. Is this correct for these elements?
Before when it was dry it was different correct. I once made a Mg/Mg cell that for all intent and purpose read as a NEGATIVE resistance on the ohm meter, but it did NOT stay that way. Bizarre. Still not sure why that happened.
Did your #20 cell switch once or twice?
What happens if you place the NEGATIVE LEAD ON A DRY #20 Cell?
Does that initially show NEGATIVE then when adding water show POSTIVE?
Thanks again.
Jim
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