- #1

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I made a diagram. (each tick mark = 2 units). I imagine this is just a uniform electric field. The equipotential lines are perpendicular to the field lines. The two lines going up and to the right are field lines, and the two perpendicular lines are lines of equipotential. The one passing through the origin is 0V. The other one is passing through the point (1.5, 3.5), but I don't know its value. Don't I need to know how far away the charge is that is creating the Electric field in order to determine how potential will change with distance?