A-Level Physics Specification

OCR A H556

Section 6.2.3: Uniform electric field

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#6.2.3a

uniform electric field strength;
\(E = \dfrac{V}{d} \)

#6.2.3b

parallel plate capacitor; permittivity;
\(C = \dfrac{ε_0A}{d} \); \(C = \dfrac{εA}{d} \); \(ε = ε_rε_0\)

Learners are not expected to know why the relative permittivity \(ε_r ≥ 1 \) .

#6.2.3c

motion of charged particles in a uniform electric field.

Learners will also require knowledge of 3.1, 3.2 and 3.3