An uncharged metal slab has square faces with 12 cm sides. It is placed in an external electric field

| August 31, 2017

Question
a.An uncharged metal slab has square faces with 12 cm sides. It is placed in an external electric field that is perpendicular to its faces. The total charge induced on one of the faces is 1.2 nC. What is the magnitude of the electric field?

b.Two charged, concentric, conducting spherical shells have radii a = 0.10 m and b = 0.22 m. The inner shell has a charge of -7.0 x 10-7 C. The outer shell has a charge of +7.0 x 10-7 C. Find the magnitude of the electric field at a radius r = 0.16 m.

c.The following charges are located inside a submarine: 23.00 µC, -9.00 µC, 27.0 µC, and -84.0 µC.
Calculate the magnitude of the net electric flux through the submarine.

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