ELECTRIC POTENTIAL
This is the general setup we used for this experiment. It's a dot of silver connected to 15V power supply with the negative end connected to the silver line. Then we used a volt meter on the semiconducting black sheet to see the electric potential of the system at various points away from the silver dot.
Our data came out magnificent. The interesting thing to note is that once we measured the voltage distance AFTER the silver line, it's electric potential would drop at a slower rate.
Plotting the data of electric potential (V) vs distance (x) we observe the graph having a fairly exponential shape
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