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A conducting sphere with radius a is surrounded by a concentric nonconducting spherical
shell with inner radius b and outer radius c. The inner sphere has a negative charge -Q
while the spherical shell has a positive charge Q uniformly distributed throughout its volume.
The distance from the center is r. Which of the following statements is FALSE?
0 a b c
A. E is proportional to 1/r2 for a <r<b.
B. E is maximum at r = b.
C. E=0 for r>c.
D. E=0 for r<a.
E. E0 everywhere.

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