Permittivity and Permeability of Materials Obstacle Course: Difference between revisions

Revision as of 19:41, 16 May 2018

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- 6061 3/8" Al rod stock
- Teflon
- Glass microscope slide

Place three samples (air, Teflon, glass) between the aligned and polished ends of two 3/8" diameter, 1/2" lengths of 6061 Al rods. Measure the capacitances and from the known surface area $A$ and spacing $d$ determine the material's relative permittivity..

$C=\epsilon _{r}\epsilon _{0}{\frac {A}{d}}$ .

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 === Permittivity of a Lossless Material From a Capacitance Measurement ===
-# Place a material sample (air, Teflon, glass) between the aligned and polished ends of two 3/8" diameter, 1/2" lengths of 6061 Al rods. Measure their relative permittivities.
+# Place three samples (air, Teflon, glass) between the aligned and polished ends of two 3/8" diameter, 1/2" lengths of 6061 Al rods. Measure the capacitances and from the known surface area <math>A</math> and spacing <math>d</math> determine the material's relative permittivity.. <br>
+<math>C = \epsilon_r \epsilon_0 \frac{A}{d}</math>.