1. Determine electric field lines on the same gridded paper from the 9 equipotential lines wased on "i) electric field lines starting from positive .herge. or infinit and ending at negative ..harges er infinitii) electric field lines being per, endicular to equi, otential lines. You can compare the electric field lines determined by you to the e.ectri_ ried shown ent. e imulation s. reen 2. sit possi lever electri field lines to cross each other: wh orw , not? Not e, do not intersect eachother T. ey are , erpendi lar. s there a point on the surface where electric field is equal to_ero? wh or wh, not? its onl equal to _ero inside the electric field