Chapter 21 Electric ChargeIn this chapter we will introduce a new property of matter known as “electric charge” (symbol q ). We will explore the charge of atomic constituents. Moreover, we will describe the following properties of charge: - Types of electric charge - Forces among two electric charges (Coulomb’s law) - Charge quantization - Charge conservation(21-1)
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Are electric forces between charges important? Indeed they are!Why?Because they are responsible for:1. The formation of atoms and molecules2. All chemical reactions3. The formation of solids4. All biological processesThe study of electricity and magnetism encompasses a large number of phenomena. A few examples follow: radio waves, infra red light, visible light, ultraviolet light, x-rays, gamma rays. (21-2)