Ok, I'm a little confused about how Voltage works. So from my understanding is that Voltage is the amount of potential energy stored in one unit charge. Simple enough. So if you have an electric field from a positively charged ceiling to a negatively charged floor (with the same magnitude), there must be a point where the voltage is zero. So does this mean if you place a positive charge right at that point, it will not move? I'm very confused, please help.