LAB 2: Electric Field and Potential Access the simulator at https://phet.colorado.edu/sims/html/charges-and-fields/latest/charges-and-fields_en.html . Objectives: In this lab, you will Verify the formula for the electric field of the point charge. Explore the electric field lines of various charge configurations and the superposition principle. Explore the relationship between the electric field and electric potential. Part I: Electric field of the point charge Procedure: 1) Click on "Grid." Place one positive charge in the center of the grid. Click on "Electric Field." Can the arrows that the program uses to visualize the electric field be called field lines? How are they similar and different from the field lines? 2) Click on "Values". Place electric field sensors (yellow circle at the bottom) on three various points on the grid. (For convenience, choose points on the intersections of the major grid lines.) Assuming the point charge is placed in the origin of the coordinate system, record the following information in the table below. Note the scale on the grid and make sure to use correct units. Sensor # x y Electric Field angle 1 2 3