-----> Use TURBO MODE (Shift and Green flag) -----> Change the charges q1, q2, q3 and q4 using sliders -----> Drag the charges q1, q2, q3 , q4 to change. -----> Press button "Electric Field Lines" -----> Press button "Equipotential Lines"
I made this project using only the Coulomb's Law and the commands of Scratch. This is a remix of my project "Topography of electrostatic field in Scratch" http://scratch.mit.edu/projects/10084795/