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Capacitance is the ability of a body to store an electrical charge

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I am interested in measuring a small \$d\$ between two objects shown below by measuring the capacitance between the Terminals denoted as T0 and T1: The distance \$d\$ is roughly 1mm +/- 0.5mm … large. In this case, the capacitance should be given by (\$r\approx 6.5\mathrm{mm}\$ is the radius of the base of the cone). $$C=\frac{\epsilon_{0} \pi r^2}{d} \approx 1.2\mathrm{pF}$$ My idea is to …
asked Mar 22 by Mantabit