A long nonconducting cylinder (radius = 12 cm) has a charge of uniform density (5.0 nC/m3) distributed throughout its volume. Determine the magnitude of the electric field 15 cm from the axis of the cylinder.
A. 20 N/C
B. 27 N/C
C. 16 N/C
D. 12 N/C
E. 54 N/C
Answer: B
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