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28) a Hollow Conducting Spherical Shell Has Radii of 0

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28) A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. The sphere carries an excess charge of -500 nC. A point charge of +300 nC is present at the center. The surface charge density on the inner spherical surface is closest to <sub></sub>28)  A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. The sphere carries an excess charge of -500 nC. A point charge of +300 nC is present at the center. The surface charge density on the inner spherical surface is closest to   A)  zero. B)  +4.0 × 10<sup>-8</sup> C/m<sup>2</sup>. C)  +6.0 × 10<sup>-8</sup> C/ m<sup>2</sup>. D)  -4.0 × 10<sup>-8</sup> C/ m<sup>2</sup>. E)  -6.0 × 10<sup>-8</sup> C/ m<sup>2</sup>.


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