class-12th physics chapter- 1 Electric charge and field, Electric charge & their experiment

class 12th physics series, chapter- 1 Electricity and their type with uses class-12th physics chapter-1 define of electric charge and William Gilbert define, experiment for finding nature of charge like glass rod experiment, plastic rod experiment, also define of conductor and insulator and dielectric also..    • Relation b/w E and V   (Offline class)       • Electricity and their type with uses class...