The electric field everywhere on the surface of a thin, spherical shell of radiu

Question

The electric field everywhere on the surface of a thin, spherical shell of radius 0.755 m is of magnitude 850 N/C and points radially toward the center of the sphere.

(a) What is the net charge within the sphere's surface?
___________________nC

(b) What is the distribution of the charge inside the spherical shell?

a-The positive charge has a spherically symmetric charge distribution.

b-The negative charge has an asymmetric charge distribution.

c-The negative charge has a spherically symmetric charge distribution.

  d-The positive charge has an asymmetric charge distribution.

Explanation / Answer

E = k q / r2

850 N/C = (8.99 * 109) q / 0.7552

q = 5.39 * 10-8 C

But Q is negative, as E points inward

Q = 53.9 nC

--------------------------------

c)The negative charge has a spherically symmetric charge distribution

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