Physics A-Level
Energy equations for capacitors
What Energy equations for capacitors means in Physics A-Level, as defined for OCR.
Definition of Energy equations for capacitors
Check what you remember
Read the wording for your board, then hide it and explain Energy equations for capacitors in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The energy stored is W = ½QV, and substituting Q = CV gives W = ½CV² or W = ½Q²/C.
Topics that use Energy equations for capacitors
- Energy (OCR A-Level)
Related terms
- Area under a graph as work done
- Graphical representation of energy
- Proportionality of charge and p.d.
- Rapid discharge applications
- Selection of appropriate equation
- Temporary versus continuous energy supply
- Capacitance from gradient
- Energy storage in a capacitor
Using Energy equations for capacitors 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