rcwiegand01 19 Feb 2025 in Public Electric Charge and Electric Force https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/11%3A_Electricity/11.03%3A_Static_Electricity/11.3.01%3A_Electric_Charge_and_Electric_Force static electricity science negative particles electroscope science experiments