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7.2.3 Power ratings — OCR Physics A J249 | GradeGen.AI
Physics A
Energy
Power and efficiency
Power ratings
Power ratings
OCR GCSE Physics A (J249) — Energy
What You Need to Know
Describe the relationship between power ratings for domestic electrical appliances and changes in stored energy during use.
Revision Notes
1
Power ratings
8 key terms
Practise with Past Papers
Key Terms & Definitions
Previous Subtopic
Energy waste in devices
Next Subtopic
Calculating efficiency
