| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity of free space symbol | 0.85 | 0.3 | 4266 | 57 | 33 |
| permittivity | 1 | 0.9 | 5230 | 11 | 12 |
| of | 1.01 | 0.7 | 859 | 6 | 2 |
| free | 1.12 | 0.2 | 1689 | 86 | 4 |
| space | 1 | 0.8 | 1126 | 83 | 5 |
| symbol | 0.49 | 0.5 | 9823 | 35 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity of free space symbol | 1.38 | 0.8 | 770 | 89 |
