As discussed in the 102 lecture, charged particles or objects possess electric potential and electric field. We then observed this property with an experiment where we have to plot points on the graph that have the same amount of voltage.
We filled the electrolytic tank with water, then placed the electrodes with wires connected to a power source. Using a voltmeter, we recorded the voltages with respect to their positions on the tank.
I was amused when I connected the points with the same voltage, they were forming a curve, and they were asymptotic to each other. Though, it was really hard to make accurate measurements, because the voltmeter we were using is highly sensitive. When a phone or any object made of metal is close to the set-up, the voltmeter shows a different reading. That's why some parts of our graph were not satisfactory.
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