Page 49 - Engineering Electromagnetics, 8th Edition
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CHAPTER 2 Coulomb’s Law and Electric Field Intensity 31
Figure 2.2 The vector r locates the point
charge Q, the vector r identifies the general point
in space P(x, y, z), and the vector R from Q to
P(x, y, z)is then R = r − r .
Figure 2.3 The vector addition of the total electric field
intensity at P due to Q 1 and Q 2 is made possible by the
linearity of Coulomb’s law.
