Hi forum, So I've forgotten how to calculate electric fields in physics, and I have a formal lab report due Monday. Since I'm responsible for data calculation, I was wondering if anyone knew how to calculate a field in table. Here's how our lab went: -First, we had two grid-marked plates filled with water. -Using a batter connected a tester-object thing, we found the electric potential (V) of every little grid. [Data of this is attached] Our lab requires us to find four electric field vectors for each configuration. To do this, we used the fact that the electric field is the 3-dimensional negative slope of the potential function with respect to position. That is, the x-component of the field is the negative slope of the potential in the x-direction, and the y-component of the field is the negative slope of the potential in the y-direction. Here are the general formulas for electric field: Code (Text): Ex = dV/dx Ey = dV/dy I don't understand how to find and draw the vectors representing the field at each point. If anyone could help, it would be greatly appreciated <3