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A +38 µC point charge is placed 36 cm from an identical
+38 µC charge. A –1.5 µC charge is moved from point A
to point B as shown in Fig. 17–47. What is the change in
potential energy?
В
14 cm
FIGURE 17-47
38 μC
12 cm
24 cm
38 μC
Problem 81.
A

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