The electric field everywhere on the surface of a thin sphericalshell of radius

Question

The electric field everywhere on the surface of a thin sphericalshell of radius 0.770 m is measured tobe equal to 900 N/C and pointsradially toward the center of the sphere. (a) What is the net charge within the sphere'ssurface?
1 nC
(b) What can you conclude about the nature and distribution of thecharge inside the spherical shell? 2 Thecharge is positive and has a spherically symmetricdistribution.
Thecharge is negative and has an lineardistribution.    
Thecharge is positive and has an linear distribution.
Thecharge is negative and has a spherically symmetricdistribution.
(a) What is the net charge within the sphere'ssurface?
1 nC
(b) What can you conclude about the nature and distribution of thecharge inside the spherical shell? 2 Thecharge is positive and has a spherically symmetricdistribution.
Thecharge is negative and has an lineardistribution.    
Thecharge is positive and has an linear distribution.
Thecharge is negative and has a spherically symmetricdistribution.
2 Thecharge is positive and has a spherically symmetricdistribution.
Thecharge is negative and has an lineardistribution.    
Thecharge is positive and has an linear distribution.
Thecharge is negative and has a spherically symmetricdistribution.
2 Thecharge is positive and has a spherically symmetricdistribution.
Thecharge is negative and has an lineardistribution.    
Thecharge is positive and has an linear distribution.
Thecharge is negative and has a spherically symmetricdistribution.
2

Explanation / Answer

(a) At the center, the net charge is0C because the field on the surface of thesphere cancels out at the center.

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