Part B (Figure 1)A neutral conducting sphere containsa spherical cavity. A point

Question

Part B (Figure 1)A neutral conducting sphere containsa spherical cavity. A point charge q is placed at the center of the cavity What is the total surface charge Jext on the exterior surface of the conductor? View Available Hint(s) Hint 1. Properties of a conductor In the problem introduction you are told that the conducting sphere is neutral. Also, recall that the free charges within a conductor always accumulate on the conductor's surface or surfaces. You found the net charge on the conductor's interior surface in Part A. If the conductor is to have zero net charge (as it must, since it is neutral), how much charge must be present on its exterior surface? Figure 1 of 1> tq ext Submit Request Answer Part C

Explanation / Answer

The net electric field inside the conductor has to be zero because it is conductor . the charges will try to move to the inner surface of the cavity, thus leaving a net + q charge on the outer surface of the cavity. since it creates a net electric field inside the conductor which is not allowed so this will induce an equal and opposite charge of -q on the inner surface of conductor . so+ q charge on the outer most surface of the conductor

q_in = -q

outer most surface of the conductor is q_ext = + q

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