| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity of free space value si units | 1.23 | 0.4 | 9823 | 4 | 41 |
| permittivity | 1.18 | 0.1 | 279 | 77 | 12 |
| of | 1.38 | 0.1 | 2443 | 32 | 2 |
| free | 1.45 | 0.3 | 9349 | 69 | 4 |
| space | 0.87 | 0.3 | 7286 | 26 | 5 |
| value | 0.5 | 0.5 | 8914 | 13 | 5 |
| si | 0.05 | 0.7 | 2900 | 88 | 2 |
| units | 0.58 | 0.5 | 9823 | 4 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity of free space value si units | 1.62 | 0.1 | 7898 | 41 |
