e
is the permittivity (F/m)e0
is the permittivity of free space (F/m)e
r is the relative permittivity of the dielectricA is the area of the electrodes (length, l * width, w in m2)
d is the distance between the plates (m)
2 Parallel Plates Coaxial Cylinders
The formulas on this page allow one to calculate the capacitance for certain given geometries. More complex problems typically require one to model the geometry and solve using Finite Element Analysis.
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e is the permittivity (F/m)e0 is the permittivity of free space (F/m)e r is the relative permittivity of the dielectricA is the area of the electrodes (length, l * width, w in m2) d is the distance between the plates (m) |
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e is the permittivity (F/m)e0 is the permittivity of free space (F/m)e r is the relative permittivity of the dielectrica is the radius of the inner cylinder b is the radius of the outer cylinder l is the length of the cylinders (m) |
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Last Modified: June 12, 1999
© 1999 Richard M. Ness and Ness Engineering
