| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity of free space in mm | 1.97 | 0.5 | 232 | 67 | 32 |
| permittivity | 0.57 | 0.2 | 1527 | 26 | 12 |
| of | 0.18 | 0.4 | 6617 | 58 | 2 |
| free | 1.72 | 0.5 | 2200 | 23 | 4 |
| space | 0.02 | 0.4 | 7529 | 55 | 5 |
| in | 1.44 | 0.8 | 4237 | 84 | 2 |
| mm | 1.97 | 0.1 | 1859 | 82 | 2 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity of free space in mm | 0.2 | 0.7 | 1572 | 70 |
