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
d
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