The field just outside the surface of a long conducting cylinder which has a 2.0-cm radius points radially outward and has a magnitude of 200 N/C. What is the charge density on the surface of the cylinder?
a. 2.7 nC/m2
b. 1.8 nC/m2
c. 3.5 nC/m2
d. 4.4 nC/m2
e. 0.90 nC/m2
b
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