4.3.2 — Series and parallel circuits

Core

• 4.3.2.1 — Know that current is the same at every point in a series circuit
• 4.3.2.2 — Know how to construct and use series and parallel circuits
• 4.3.2.3 — Calculate combined e.m.f. of sources in series
• 4.3.2.4 — Calculate combined resistance of resistors in series
• 4.3.2.5 — State that current from the source in a parallel circuit is larger than current in each branch
• 4.3.2.6 — State that combined resistance of two resistors in parallel is less than either alone
• 4.3.2.7 — State advantages of connecting lamps in parallel
• 4.3.2.8 — Explain that currents entering a junction equal currents leaving a junction
• 4.3.2.9 — Calculate combined resistance of two resistors in parallel

Supplement

• 4.3.2.10 — Use Kirchhoff-type ideas: current conservation, p.d. addition in series, equal p.d. in parallel branches