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13 May, 19:41

We have a hollow metallic sphere with charge - 5.20 µC and radius 5.40 cm. We insert a + 10.4 - µC charge at the center of the sphere through a hole in the surface. What charge now rests on the outer surface of the sphere?

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  1. 13 May, 20:04
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    +5.20 µC

    Explanation:

    Given that

    Charge = -5.20 µC and radius = 5.40 cm.

    Insert a + 10.4 - µC charge at the center of the sphere

    As we know that according to Gauss's theorem electric field inside the metal is zero.

    When + 10.4 µC charge insert but the total charge on the sphere should be - 5.20 µC. So the charge on the outer surface of the sphere will be + 5.20 µC.
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