A spherical, non-conducting shell of inner radius r1= 10 cm and outer radius r2 = 15 cm carries a total charge Q = 15 ?C distributed uniformly throughout the volume of the shell
What is the magnitude of the electric field at a distance r = 12 cm from the center of the shell? (k = 1/4??0 = 8.99 × 109 N ? m2/C2) A) 5.75 × 103 N/C
B) zero
C) 2.87 × 106 N/C
D) 5.75 × 106 N/C
E) 2.87 × 103 N/C
C
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