Physics A-Level
Conservation of energy in electrical circuits
What Conservation of energy in electrical circuits means in Physics A-Level, as defined for OCR.
Definition of Conservation of energy in electrical circuits
Check what you remember
Read the wording for your board, then hide it and explain Conservation of energy in electrical circuits in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Charge returning to its starting point must have the same total energy, so energy gained from sources equals energy lost in components.
Topics that use Conservation of energy in electrical circuits
- Series and parallel circuits (OCR A-Level)
Related terms
- Circuit analysis
- Conservation of charge
- Conservation of energy
- Kirchhoff's laws
- Ohm’s law
- Series and parallel combinations
- Sign conventions in loop analysis
- Simultaneous equations in circuit analysis
Using Conservation of energy in electrical circuits in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge