Charge of Uniform Density (20 NC/m²) Is Distributed Over a Cylindrical

question 10

Multiple Choice

Charge of uniform density (20 nC/m²) is distributed over a cylindrical surface (radius = 1.0 cm) , and a second coaxial surface (radius = 3.0 cm) carries a uniform charge density of −12 nC/m². Determine the magnitude of the electric field at a point 2.0 cm from the symmetry axis of the two surfaces.

• A) 2.3 kN/C
• B) 1.1 kN/C
• C) 1.7 kN/C
• D) 3.4 kN/C
• E) 4.5 kN/C

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