27.Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = -40 pC and Q = +30 pC, determine the net flux through a spherical surface (radius = 1.0 m) centered on the origin. The permittivity of free space is 8.85 ×
C2 / N · m2.
(A) -9.8 N · m2 / C
(B) -7.8 N · m2 / C
(C) -4.5 N · m2 / C
(D) -1.3 N · m2 / C
(E) +2.0 N · m2 / C.
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統計: A(1), B(0), C(2), D(1), E(0) #3427027
統計: A(1), B(0), C(2), D(1), E(0) #3427027