Edexcel IAL·Physics·IAL Physics

Electric Fields

13 min read

Coulomb's law, electric field strength, radial and uniform fields, and electric potential.

Coulomb's law

The force between two point charges: $F = \frac{Q_1 Q_2}{4\pi\varepsilon_0 r^2}$ An inverse-square law — like charges repel, opposite attract.

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Edexcel IAL·Physics·IAL Physics

13 min read

Coulomb's law, electric field strength, radial and uniform fields, and electric potential.

The force between two point charges: $F = \frac{Q_1 Q_2}{4\pi\varepsilon_0 r^2}$ An inverse-square law — like charges repel, opposite attract.

Create a free account to read this note in full. Every free account gets 2 complete revision notes — no card needed.