PHYS 0111 Lecture Notes - Lecture 7: Field Line, Elementary Charge, Electric Field
Document Summary
Chapter 18 electric forces and electric fields. The electrical nature of matter is inherent in atomic structure electric charge is an intrinsic property. By adding or removing electrons from matter it will acquire a net electric charge with magnitude equal to e times the number of electrons added or removed. It is possible to transfer electric charge from one object to another two unlike materials are rubbed together. Law of conservation of electric charge: during any process, the net electric charge of an isolated system remains constant (is conserved) The rubbing process serves only to separate electrons and protons already present in the material. The sum of all the electric charges in any closed system is constant. Two electrically charged objects exert a force on one another called the electric force (electrostatic) Like charges repel and unlike charges attract each other. This force can alter the motion of an object.
