TABLE OF CONTENTS | Conductors | Conductivity ? (S/m) |
|---|---|
| Aluminum | 3.5 10 7 |
| Brass | 1.6 10 7 |
| Carbon | 3.0 10 4 |
| Copper | 5.8 10 7 |
| Germanium | 2.3 |
| Gold | 4.1 10 7 |
| Graphite | 10 5 |
| Iron | 10 7 |
| Mercury | 10 6 |
| Seawater | 4 |
| Silver | 6.2 10 7 |
| Tungsten | 1.8 10 7 |
| Insulators | Conductivity ? (S/m) |
|---|---|
| Bakelite | 10 -9 |
| Distilled water | 10 -4 |
| Dry earth | 10 -5 |
| Glass | 10 -12 |
| Mica | 10 -15 |
| Porcelain | 2 10 -13 |
| Quartz | 10 -17 |
| Rubber | 10 -15 |
| Silicon | 3.9 10 -4 |
| Transformer oil | 10 -11 |
| Wax | 10 -17 |
| Wet earth | 10 -3 |
| Dielectrics | Relative dielectric constant ? r |
|---|---|
| Air | 1 |
| Barium titanate | 1200 |
| Glass | 6 |
| Mica | 6 |
| Oil | 2.3 |
| Paper | 3 |
| Paraffin | 2 |
| Polystyrene | 2.6 |
| Porcelain | 7 |
| Quartz (fused) | 4 |
| Rubber | 2.3 4.0 |
| Teflon | 2.1 |
| Water (distilled) | 80 |
| Materials | Relative permeability ? r |
|---|---|
| Ferromagnetic | |
| Cobalt | 600 |
| Commercial iron | 250 9000 |
| Nickel | 250 |
| Permalloy | 8 10 3-10 5 |
| Purified iron | 10 4-2 10 5 |
| Superpermalloy | 10 5-10 6 |
| Paramagnetic | |
| Aluminum | 1.000021 |
| Magnesium | 1.000012 |
| Palladium | 1.00082 |
| Titanium | 1.00018 |
| Diamagnetic | |
| Bismuth | 0.99983 |
| Gold | 0.99996 |
| Silver | 0.99998 |
| Copper | 0.99999 |
