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Figure 21-20 shows four situations in which particles of charge +q or -q are fixed in place. In each situation, the particles on the x axis are...
Figure 21-20 shows four situations in which particles of charge +q or -q are fixed in place. In each situation, the particles on the x axis are equidistant from the y axis. First, consider the middle particle in situation 1; the middle particle experiences an electrostatic force from each of the other two particles.
