Problem: In the figure, the point charges are located at the corners of an equilateral triangle 26 cm on a side.Find the magnitude of the electric field, in newtons per coulomb, at the center of the triangular configuration of charges, given that qa = 1.9 nC, qb = -8.7 nC, and qc = 1.5 nC.

FREE Expert Solution

Electric field:

E=kqr2

a = 26cm

r, the distance between the point at the center to one of the charges is given by, r = a/sqrt(3) = 15.0 cm

Ea=(9×109)(1.9×10-9)(15×10-2)2=760N/CEb=(9×109)(-8.7×10-9)(15×10-2)2=-3480N/CEc=(9×109)(1.5×10-9)(15×10-2)2=600N/C

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Problem Details

In the figure, the point charges are located at the corners of an equilateral triangle 26 cm on a side.
Find the magnitude of the electric field, in newtons per coulomb, at the center of the triangular configuration of charges, given that qa = 1.9 nC, qb = -8.7 nC, and qc = 1.5 nC.

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