A charge of q = +10 -8 C is uniformlydistributed on a spherical shell of radius

Question

A charge of q = +10-8 C is uniformlydistributed on a spherical shell of radius 17 cm. (a) What is the magnitude of the electric fieldjust outside and just inside the shell?
kV/m (outside)
kV/m (inside)

(b) What is the magnitude of the electric potential just outsideand just inside the shell?
V (outside)
V (inside)

(c) What is the electric potential at the center of the shell?
V
What is the electric field at that point?
kV/m (a) What is the magnitude of the electric fieldjust outside and just inside the shell?
kV/m (outside)
kV/m (inside)

(b) What is the magnitude of the electric potential just outsideand just inside the shell?
V (outside)
V (inside)

(c) What is the electric potential at the center of the shell?
V
What is the electric field at that point?
kV/m kV/m (outside)
kV/m (inside)

(b) What is the magnitude of the electric potential just outsideand just inside the shell?
V (outside)
V (inside)

(c) What is the electric potential at the center of the shell?
V
What is the electric field at that point?
kV/m

Explanation / Answer

a) E_inside = 0      E_outside = kq /(r^2) = (8.99x10^9 x 10^-8) /(.17m)^2 = 3110.7 V/m = 3.11 kV/m b) V = kq/r = (8.99x10^9 x 10^-8)/ (.17m) = 528.8 V     V_inside & V_outside are both equal in thiscase, so both equal 528.8 V. c) V_center is the same as V_inside for part B, so 528.8 V. d) E_center is the same as E_inside from part A, so E=0 kV/m.

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