Coulomb Force vs Distance

Coulomb's Law · ch01-electric-charges-and-fields

Vary the charges and watch the inverse-square force between them as a function of separation.

Controls

Charge q12.00 uC

Charge q23.00 uC

Dielectric constant1

radius r0.10 m

Live values

F = \frac{1}{4\pi\varepsilon_0 K}\frac{q_1 q_2}{r^2}

Try this: Double r and force drops to 1/4. Increase K (water = 80) and the curve flattens dramatically.

Summarize this page in your favorite LLM