Electric circuits | AP®︎/College Physics 2 | Science | Khan Academy
Explore how the law of conservation of energy applies to electric circuits. Calculate values for circuits and describe the impact a change will have on a circuit. Describe how and why circuit elements in series and parallel affect the properties of a circuit. Apply Kirchhoff’s rules.
Overview
Added
March 18, 2026
Subject & domain
physics · dc-circuits
Grade range
Grade 9 (Freshman)–Grade 12 (Senior)
Page kind
Article
Introduction
Electric Circuits Unit Overview
- Core Concept: Application of the law of conservation of energy to electric circuits.
- Key Skills:
- Calculating electrical values within circuits.
- Predicting the impact of changes made to a circuit.
- Analyzing the effects of series and parallel configurations on circuit properties.
- Analytical Tools: Application of Kirchhoff’s rules.
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