A-Level Physics OCR A H556

6.2.2: Coulombs law

#6.2.2a

Coulomb’s law; $F = \dfrac{Qq}{4πε_0r^2}$ for the force

Learners will also require knowledge of section 3.2

#6.2.2b

electric field strength $E = \dfrac{Q}{4πε_0r^2}$ for a point charge

#6.2.2c

similarities and differences between the gravitational field of a point mass and the electric field of a point charge

Learners will also require knowledge of 5.4

#6.2.2d

the concept of electric fields as being one of a number of forms of field giving rise to a force.

Learners will be expected to link this with 5.4

6.2.1

Point and spherical charges

6.2.3

Uniform electric field