A spherical, non-conducting shell of inner radius r 1 = 10 cm and outer radius r 2= 15 cm carries a total charge Q = 15 μC 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 = 1/4πε 0 = 8.99 × 10⁹ N · m²/C²)

a-zero

b-5.75 × 10⁶ N/C

c-5.75 × 10³ N/C

d-2.87 × 10⁶ N/C

e-2.87 × 10³ N/C

Question

A solid insulating sphere of radius a = 5.00 cm carries a net positive charge of Q = 3.00 μC uniformly distributed throughout its volume. Concentric with this sphere is a conducting spherical shell with inner radius b = 10.0 cm and outer radius c = 15.0 cm as shown in Figure P24.54, having net charge q = −1.00 μC. Prepare a graph of the magnitude of the electric field due to this configuration versus r for 0 < r < 25.0 cm.

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