Capacitors

Contents / notes

• Types and functions of capacitors.
• Parallel-plate capacitors.
• Capacitance of a capacitor.
• Relationship between capacitance, plate area, separation of plates and the medium between the plates.
• Capacitors in series and parallel.
• Energy stored in a capacitor.

Candidate objectives

• Determine the uses of capacitors.
• Analyse parallel-plate capacitors.
• Determine the capacitance of a capacitor.
• Analyse factors that affect capacitance.
• Solve problems involving arrangements of capacitors.
• Determine the energy stored in capacitors.