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Problem 39 Medium Difficulty

Refer to Figure $15.20 .$ The charge lowered into the center of the hollow conductor has a magnitude of 5$\mu \mathrm{C}$ . Find the magnitude and sign of the charge on the inside and out- side of the hollow conductor when the charge is as shown in (a) Figure $15.20 \mathrm{a},$ (b) Figure $15.20 \mathrm{b},(\mathrm{c})$ Figure $15.20 \mathrm{c},$ and (d) Figure 15.20 $\mathrm{d}$ .

Answer

a. surface of the sphere is zero.
b. Therefore, the charge on the inner surface is $+5.0 \mu \mathrm{C}$ and the charge on the outer surface is $-5.0 \mu \mathrm{C}$
c.
d. Therefore, the charge on the inner surface is 0 and the charge on the outer surface is $-5.0 \mu \mathrm{C}$

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Video Transcript

for this problem. On the topic of electric forces and fields, we have shown a figure which has a charge being lowered into a hollow conductor, and the charge has magnitude of five micro columns. We want to find the magnitude and sign of the charge on the inside and outside of the hollow conductor when the charge is shown in four different configurations. So in the first configuration we can see that there's a zero net charge on the and each surface of the sphere, so zero inside and zero columns outside. In configuration B. The negative charge lowered into the sphere repels the minus five micro columns on the outside of the sphere and leaves the positive five micro columns the inside surface of the sphere in part C. The negative charge load inside the sphere neutralizes the inner surface, leaving zero charge on the inside of the surface. And this leaves minus five micro columns on the outside surface of the sphere. In the final configuration for party. When the object is removed, the sphere is left would minus five micro Coolum charge on the outside surface and zero charge on the inside service

University of Kwazulu-Natal
Top Physics 102 Electricity and Magnetism Educators
Andy C.

University of Michigan - Ann Arbor

Marshall S.

University of Washington

Jared E.

University of Winnipeg

Meghan M.

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Physics 102 Electricity and Magnetism Bootcamp

Lectures

Join Bootcamp