Wire Capacitor

Electricity and Magnetism Level 5

Determine the Capacitance per unit length of a system consisting of two long parallel, cylindrical conducting wires of radius \(\displaystyle R\) each. The separation between the axes of the wires is \(\displaystyle d\).

Details and Assumptions:
\(\bullet\) \(\displaystyle d = 1 mm\)
\(\bullet\) \(\displaystyle R = 0.4 mm\)
\(\bullet\) Note that approximating the cylindrical wires as line charges won't work.


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