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Two small insulating spheres with radius 3.00×10−2 m are separated by a large center-to-center distance of...

Two small insulating spheres with radius 3.00×10−2 m are separated by a large center-to-center distance of 0.575 m . One sphere is negatively charged, with net charge -1.05 μC , and the other sphere is positively charged, with net charge 3.45 μC . The charge is uniformly distributed within the volume of each sphere.

What is the magnitude E of the electric field midway between the spheres?

Take the permittivity of free space to be ϵ0 = 8.85×10−12 C2/(N⋅m2) .

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Answer #1

electric field at mid way

E = k / (r/2) * (q1 + q2)

E = 2*9*10^9* (1.05 + 3.45)*10^-6 / 0.575^2

E = 2.45*10^5 N/C

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Comment in case any doubt, will reply for sure.. Goodluck

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