A-Level Physics Specification

OCR A H556

Section 6.2.2: Coulomb’s law

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#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