Two positive charges qa = 2.0×10^- 6 c and qb = 8.0×10^- 6 c are located at the positions a and b as shown in the figure. the distance l between the positions a and b is 1.5 m. let the proportionality constant ke of coulomb’s low (coulomb’s constant) be ke = 9.0×10^9 n･m^2/c^2. calculate the
magnitude of the resultant electric field ed at the position d with length d = 0.50 m from the position a. the position d is located on the line ab. решите с пояснениями

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