Chapter 19 Electric Charge and Electric Field 19-1819-2819-3819-4. Electric Charge and Its Conservation: Insulators and conductors Induced Charge (P456-460 I Static electricity Rub a plastic ruler(a and bring it close(b) to some tiny pieces of paper.Chapter 19 Electric Charge and Electric Field Rub a plastic ruler (a) and bring it close (b) to some tiny pieces of paper. 19-1&19-2&19-3&19-4. Electric Charge and Its Conservation; Insulators and conductors; Induced Charge (P456-460) 1 Static electricity