| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity of free space units | 1.01 | 0.8 | 1317 | 55 | 32 |
| permittivity | 0.12 | 0.4 | 851 | 22 | 12 |
| of | 1.53 | 0.7 | 7559 | 40 | 2 |
| free | 1.56 | 0.8 | 2044 | 28 | 4 |
| space | 1.24 | 0.4 | 8125 | 98 | 5 |
| units | 0.43 | 0.4 | 3987 | 66 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity of free space units | 0.27 | 0.5 | 3043 | 7 |
