Chapter 19 Electric Charge and Electric Field l. Electric charge(电荷) It is an intrinsic character of the fundamental particles making up those objects 个物体能够吸引轻微的物体,这个物体就带有 电荷,也称带电体 It can be either positive or negative. Charges with the same sign repel each other and charges with opposite signs attract each other. That is: unlike charges attract, like charges repel(同号相斥,异号相吸).p457Chapter 19 Electric Charge and Electric Field 1. Electric charge (电荷) It is an intrinsic character of the fundamental particles making up those objects. It can be either positive or negative. Charges with the same sign repel each other and charges with opposite signs attract each other. That is: unlike charges attract, like charges repel (同号相斥, 异号相吸). p457 一个物体能够吸引轻微的物体，这个物体就带有 电荷，也称带电体