Q18 · Electrostatics

Problem

Solid cylinder radius R, uniform ρ, spherical cavity radius R/2 on axis. |E| at 2R from axis = k·(23ρ)/(16ε₀R). Find k.

Setup

flowchart LR
  Q["Given geometry + potential X"] --> F["Force balance at release"]
  F --> A["Answer: X"]

Solution steps coming soon.

Hints

• Superposition: full cylinder minus cavity.

Answer

(6)