A Spherical, Non-Conducting Shell of Inner Radius R₁= 10 Cm

A spherical, non-conducting shell of inner radius r₁= 10 cm and outer radius r₂= 15 cm carries a total charge Q = 15 μC distributed uniformly throughout its volume. What is the electric field at a distance r= 12 cm from the center of the shell?

A) 5.75 × 10³ N/C
B) 0
C) 2.87 × 10⁶ N/C
D) 5.75 × 10⁶ N/C
E) 2.87 × 10³ N/C