Charge of Uniform Density (80 NC/m³) Is Distributed Throughout a Hollow

Multiple Choice

Charge of uniform density (80 nC/m³) is distributed throughout a hollow cylindrical region formed by two coaxial cylindrical surfaces of radii 1.0 mm and 3.0 mm. Determine the magnitude of the electric field at a point which is 2.0 mm from the symmetry axis.

A) 7.9 N/C
B) 9.0 N/C
C) 5.9 N/C
D) 6.8 N/C
E) 18 N/C