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Ohm's Law and Variable Resistance — OCR GCSE Combined Science A J250
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Combined Science
OCR GCSE Combined Science A
Electricity and Magnetism
Simple Circuits
Ohm's Law and Variable Resistance
OCR GCSE Combined Science A · J250
Ohm's Law and Variable Resistance
What you need to know
Recall and apply the mathematical relationship connecting current, resistance, and potential difference.
Understand that while resistance remains constant for some ohmic conductors, it naturally varies in other components as the current changes.
Revision notes
1
Ohm's Law and Variable Resistance
5 key terms
Practise with past papers
Key terms & definitions
Previous subtopic
Current, Resistance, and Potential Difference
Next subtopic
Constant vs. Changing Resistance
