electromagnetism

Electric Fields

Visualize electric field vectors and equipotential surfaces from point charge configurations. Place positive and negative charges and see Coulomb's Law in action with 3D field lines.

Electric Fields

A-Level

Coulomb's Law states that the force between two point charges is proportional to the product of their charges and inversely proportional to the square of their separation. Electric field strength E = F/q.

Charge 15.0μC

Charge 2-3.0μC

Separation3.0m

📐 Formulas

F = \frac{1}{4\pi\epsilon_0}\frac{q_1 q_2}{r^2}Force between point charges

E = \frac{F}{q} = \frac{1}{4\pi\epsilon_0}\frac{Q}{r^2}Field due to a point charge

V = \frac{1}{4\pi\epsilon_0}\frac{Q}{r}Electric potential

📋 Syllabus

AQA3.7.3

EdexcelTopic 7

OCR6.1.1