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Physics 9 Online
OpenStudy (anonymous):

Two 20cm long thin glass rods uniformly charged to +14nC are placed side by side, 4.0 cm apart. What are the electric field strengths E1, E2, and E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm to the right of the rod on the left, along the line connecting the midpoints of the two rods? Could you give me an idea where to start?

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