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A uniform line charge of linear charge density l = 5.00 nC/m extends from x = 0 to x = 10 m. The magnitude of the electric field at x = 12 m is
a. 3.86 N/C
b. 9.62 N/C
c. 15.3 N/C
d. 18.8 N/C
e. 37.5 N/C
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