| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity of free space in cgs | 0.68 | 0.2 | 8748 | 61 | 33 |
| permittivity | 1.87 | 0.8 | 9408 | 19 | 12 |
| of | 1.42 | 0.7 | 9113 | 33 | 2 |
| free | 1.88 | 0.1 | 4317 | 98 | 4 |
| space | 1.51 | 0.3 | 4677 | 23 | 5 |
| in | 1.73 | 0.4 | 6283 | 27 | 2 |
| cgs | 0.07 | 0.3 | 3919 | 2 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity of free space in cgs | 1.48 | 1 | 4314 | 23 |
