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

question 103

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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