Plz help with this lab

lab notebook. Step 1. Place one positive charge in the virtual space. Choose a location with the equipotential box and plot an equipotential line. Note the magnitude. Move the equipotential box to a second and third location and plot more lines, each time noting the new magnitude. What is the shape of each of these 2-D equipotentials? What equipotential shape would form if you were using 3-D space? What equation would allow you to determine the magnitude of each equipotential? Place an E- Field sensor on each equipotential line. Move the sensor to different potentials on each line. What Step 2. Clear the virtual space and repeat part 1 with a negative charge. How do your answers change and how do they stay the same