The space between two concentric conducting spherical shells of radii b = 1.70 cm and a...
The space between two concentric conducting spherical shells of radii b = 1.70 cm and a = 1.20 cm is filled with a substance of dielectric constant κ = 20.5. A potential difference V = 62.0 V is applied across the inner and outer shells.
(a) Determine the capacitance of the device.
(b) Determine the free charge q on the inner shell.
(c) Determine the charge q' induced along the surface of
the inner shell.
Homework Answers
part a )
C = k*4pi*eo*b*a/(b-a)
k = 20.5
eo = 8.85 x 10^-12
C =9.3 x 10^-11 F
part b )
q = CV
q = 5.767 x 10^-9 C
part c )
q' = (1-1/k)*q
q' = 8.848 x 10^-11 C
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