| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity and permeability of free space | 1.24 | 0.3 | 9270 | 61 | 43 |
| permittivity | 1.28 | 0.8 | 1763 | 12 | 12 |
| and | 1.3 | 0.7 | 1314 | 52 | 3 |
| permeability | 0.16 | 0.1 | 9021 | 31 | 12 |
| of | 1.54 | 0.4 | 1939 | 55 | 2 |
| free | 1.2 | 1 | 1079 | 8 | 4 |
| space | 0.93 | 0.7 | 2118 | 69 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity and permeability of free space | 0.17 | 0.2 | 5160 | 49 |
