Electric fields

Subtopics and study areas

• Use Coulomb's law and definitions of electric field strength.
• Relate electric potential, potential difference and energy transfer.
• Analyse uniform and radial electric fields qualitatively and quantitatively.
• Define electric field strength as force per unit positive test charge.
• Use E = F/Q and E = V/d for appropriate fields.
• Apply the inverse-square character of the force between point charges qualitatively.