| 1 | This is not a Coulombic force. | |
| 2 | The first term is the screened Coulomb repulsion. | |
| 3 | The smallest charge I could put here would be 1.6 times 10 to the minus 19 coulombs. | |
| 4 | So, the Coulombic forces, Coulombic or electrostatic forces draw. | |
| 5 | What is the unit of charge in SI? Coulomb. |