An infinitely long cylinder of radius 4.0 cm carries a uniform volume charge density p = 200 nC/m³. What is the electric field at r = 4.1 cm?

Question

Quizplus · Accepted Answer

The electric field outside a uniformly charged cylinder is given by E = (p * r) / (2 * ε₀), where r is the distance from the axis. Substituting the given values, E = (200 x 10^-9 C/m³ * 0.041 m) / (2 * 8.85 x 10^-12 C²/N·m²) = 0.44 kN/C.

An Infinitely Long Cylinder of Radius 4