Physics › Equations › Electric fields

Electric fields equations

The 7 equations the electric fields notes display, each with a link to the lesson that states it. The AQA data booklet prints all 7.

Year 13 · 2 lessons with equations.

The marks refer to the AQA 7408 data booklet. An equation it prints is marked as such, and one it leaves out is marked to learn. An equation with no mark has not been checked against that booklet, and some of these belong to the Edexcel, OCR or CIE specification rather than AQA’s, so check them against your own board’s data or formula booklet.

2 lessons

Coulomb's law and electric field strength

F=14πε0Q1Q2r2F = \frac{1}{4\piε_{0}}\,\frac{Q_{1}Q_{2}}{r^{2}}IN THE AQA DATA BOOKLET
E=FQE = \frac{F}{Q}IN THE AQA DATA BOOKLET
E=VdE = \frac{V}{d}IN THE AQA DATA BOOKLET
E=14πε0Qr2E = \frac{1}{4\piε_{0}}\,\frac{Q}{r^{2}}IN THE AQA DATA BOOKLET

Electric potential

V=14πε0QrV = \frac{1}{4\piε_{0}}\,\frac{Q}{r}IN THE AQA DATA BOOKLET
ΔW=QΔV\Delta W = Q\Delta VIN THE AQA DATA BOOKLET
E=ΔVΔrE = \frac{\Delta V}{\Delta r}IN THE AQA DATA BOOKLET

Every equation in the library is indexed by unit on the equation index, and the electric fields notes are where these equations are derived and used.

Also: Gravitational fields equations · Capacitance equations