Voltaic Pile (A Battery that Makes Cents)

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amyC
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Voltaic Pile (A Battery that Makes Cents)

Post by amyC »

Posted on behalf of a parent. Please reply here for parent, who will be referring to this post for assistance.

Project: A Battery That Makes Cents https://www.sciencebuddies.org/science- ... p015.shtml
My son did A Battery that Makes Cents and we have a question about the results. The issue is that we got somewhat conflicting results from the multimeter both times and we are not sure if we did something wrong. When measuring the voltage, the units generally went up with the number of coins although they did dip and remain stagnant a couple of times. Should there be an increase in voltage each time a set of coins is added?
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kgudger
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Re: Voltaic Pile (A Battery that Makes Cents)

Post by kgudger »

Hi:

Yes, there should be an increase in voltage each time a set of coins is added. Each coin set is a battery. Please research about batteries in series to understand this. If you're having trouble getting reliable readings, you may want to clean the coins and start over.

Keith
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