BRAINCAKEPoint Charges
A point charge is a hypothetical object of negligible size. A 'test' charge is a point charge that does not affect the field it is in i.e. does not itself produce a force.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- Equipotential
- A surface or line joining points of equal potential, along which no work is done in moving a test mass or charge.
- Electric field strength
- The electric force per unit charge acting on a small positive test charge placed at a point in an electric field.
More in Electric Fields
- Van de Graaf generator
- Electric Potential
- Equipotentials
- Potential gradient
- The Force between Two Charged Objects
- Coulomb's Law
- Electric Field Strength
- Electric Potential
All 17 lessons in Electric Fields · All AQA A-level Physics topics