1. Three equal point charges (q = 2.0 nC) are placed as shown in the figure below. a. What is the electric field (magnit
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1. Three equal point charges (q = 2.0 nC) are placed as shown in the figure below. a. What is the electric field (magnit
1. Three equal point charges (q = 2.0 nC) are placed as shown in the figure below. a. What is the electric field (magnitude and direction) at the points labeled A & B? (A is midway between the two left charges and B is midway between the two right charges). b. If the middle charge is instead –q, what is the electric potential at the points labeled A & B? [Hint: look for simplifying symmetries] + + + A B 4.0 cm 2.0 cm
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