Two 10 cm -long thin glass rods uniformly charged to + 15nC are placed side by s

Question

Two 10 cm -long thin glass rods uniformly charged to + 15nC are placed side by side, 4.0 cm apart. What are the electric field strengths E_1, E_2, and E_3 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? E_1 = Specify the electric field strength E_2. Express your answer to two significant figures and include the appropriate units. E_2 Specify the electric field strength E_3. Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

A) E1 = summation 2k*q/L* sin theta

= 18e9*15e-9/0.10*(5/sqrt(5^2+1^2) - 5/sqrt(5^2+3^2))

= 332 N/C

B) E2 = 0 because of symmetry

C) E3 = 332 N/C. similar to part A

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