| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| permittivity of free space symbol | 1.22 | 0.5 | 269 | 17 | 33 |
| permittivity | 0.42 | 0.9 | 1826 | 40 | 12 |
| of | 0.69 | 0.3 | 3820 | 24 | 2 |
| free | 1.76 | 0.8 | 1109 | 58 | 4 |
| space | 0.7 | 0.8 | 1312 | 2 | 5 |
| symbol | 0.98 | 0.1 | 289 | 15 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| permittivity of free space symbol | 1.11 | 0.3 | 8932 | 67 |
