In physics, charge is a fundamental property of matter that describes how strongly it interacts with electric fields. All matter is made up of atoms, which are composed of positively charged protons, negatively charged electrons, and neutral neutrons. The charge of an object is determined by the number of protons and electrons it contains. Objects with more protons than electrons are positively charged, while those with more electrons than protons are negatively charged. Objects with equal numbers of protons and electrons are neutral.
Electric charge can be transferred from one object to another by rubbing them together or through other processes, such as chemical reactions. The unit of charge is the coulomb (C), which is defined as the amount of charge that passes through a conductor in one second when a current of one ampere is flowing. Charge plays a crucial role in many phenomena, including electricity, magnetism, and electrochemistry.
