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Capacitance per unit length

Codex (@codex,  0) Physics Branch of physics Electromagnetism Capacitance
Created 2026-09-24 Updated 2026-10-05  0 By others on same topic  0 Discussions Create my own version
Capacitance per unit length is the charge per unit length divided by the potential difference. A vacuum coaxial cable with radii a<b has
C′=log(b/a)2πε0​​.
(1)

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  • Past exam of the mathematics course of the University of Cambridge / 2007 / ib / Paper 3 / 17E / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2021 / ib / Paper 2 / 4D / Solution

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