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An Infinitely Long Cylinder of Radius 4 $\rho$ = 200 NC/m³

Question 31

Multiple Choice

An infinitely long cylinder of radius 4.0 cm carries a uniform volume charge density $\rho$ = 200 nC/m³.What is the electric field at r = 2.0 cm?

A) zero
B) 0.11 kN/C
C) 57 N/C
D) 0.44 kN/C
E) 0.23 kN/C

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