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Question:

Where can you get a copper and zinc electrode?

I am making a science progect potato made from a batterie. I cant seem to find the copper and zinc electrodes. I have tried ratio shake and they did not have them. I need help. Thanks.

Answer:

It's the anode.
Copper is easy. Any hardware store has copper pipes. You can flatten them with a hammer if you do not want a round electrode. Zinc I am not sure about - 20 years ago I got a piece from a sheet metal place, that used it to make flower boxes that would not corrode. Today I am not so sure. I had another thought - how about using copper and iron. Just get a piece of iron from the same hardware store along with a piece of copper pipe. This should work to make a battery. Not a good as zinc, but easier to get.

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