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Question 3 What is the electric ux through surface B of the gure provided? 0 49/60 Question 4 A point charge qsits at the center of a hollow metal sphere as shown above, where a = 14.0 cm and b =19.5 cm. There is +7.30 nC distributed on the inner surface of the sphere, and -23.3 nC on the outer surface. What is the value of the point charge q? 0 -7.30 n0 0 -30.6 n0 0 -23.3 n0 0 -16.0 nC