Capacitors and AC Circuits · Summer Term

Alternating Currents (AC)

Students will describe the characteristics of alternating current, including RMS values and phase relationships.

Key Questions

  1. Explain why AC is preferred over DC for long-distance power transmission.
  2. Analyze the relationship between peak voltage/current and RMS voltage/current.
  3. Compare the power dissipation in AC and DC circuits under different conditions.

National Curriculum Attainment Targets

A-Level: Physics - AC CircuitsA-Level: Physics - Electricity
Year: Year 12
Subject: Physics
Unit: Capacitors and AC Circuits
Period: Summer Term

Suggested Methodologies

Case Study Analysis

Deep dive into a real-world case with structured analysis

30–50 min

Learn more about Case Study Analysis

Concept Mapping

Build visual maps of concept relationships

20–40 min

Learn more about Concept Mapping

Think-Pair-Share

Individual reflection, then partner discussion, then class share-out

10–20 min

Learn more about Think-Pair-Share

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