3) Point charges q, = 30 µC, q,= -20 µC, and q; = 10 µC are located in Figure 1. A rod with length L = 2 m has a total charge 4 =100 µC and a uniform linear charge density 2 = 50 µC/m in Figure 2. (a) Find the potential at Pin Figure 1. (b) Find the total potential energy of charge system in Figure 1. (c) Find the total potential at Pin Figure 2. (k = 9×10° N×m²/C², and µ= 10-9) %3D λ-50 μC/m y 91 = 30 µC q30 μC L = 2 m 0.3 m' 0.3 m 0.5 m 93 = 10 µC `0.2 m <--- 0.2 m 0.2 m 0.2 m 0.3 m ´0.5 m 0.3 m 92 = -20 µC 42 = -20 µC Figure 1 Figure 2 q= 100 µC
3) Point charges q, = 30 µC, q,= -20 µC, and q; = 10 µC are located in Figure 1. A rod with length L = 2 m has a total charge 4 =100 µC and a uniform linear charge density 2 = 50 µC/m in Figure 2. (a) Find the potential at Pin Figure 1. (b) Find the total potential energy of charge system in Figure 1. (c) Find the total potential at Pin Figure 2. (k = 9×10° N×m²/C², and µ= 10-9) %3D λ-50 μC/m y 91 = 30 µC q30 μC L = 2 m 0.3 m' 0.3 m 0.5 m 93 = 10 µC `0.2 m <--- 0.2 m 0.2 m 0.2 m 0.3 m ´0.5 m 0.3 m 92 = -20 µC 42 = -20 µC Figure 1 Figure 2 q= 100 µC
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3) Point charges q, = 30 µC, q= -20 µC, and q; = 10 µC are located in Figure 1. A rod with length
L = 2m has a total charge q =100 µC and a uniform linear charge density 2 = 50 µC/m in Figure 2.
(a) Find the potential at Pin Figure 1.
(b) Find the total potential energy of charge system in Figure 1.
(c) Find the total potential at P in Figure 2. (k = 9×10° N×m²/C², and µ= 10-6)
λ-50 μC/m
q1 = 30 µC
q1 = 30 µC
+
L = 2 m
0.3 m
0.3 m
0.5 m
93 = 10 µC
P
0.2 m
0.2 m -->
0.2 m
0.2 m
0.3 m
0.3 m
0.5 m
6 7
q2 = -20 µC
92 = -20 µC
-1
Figure 1
Figure 2
q- 100 μC
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