OCR GCSE Physics A · J249
Specification P3.2c · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Current, resistance, potential differenceResistance describes how strongly the component opposes the flow of charge and is measured in ohms (Ω).
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GCSE Physics · key term
The unit of resistance, with symbol Ω.
Used by OCR
Specification P3.2c · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Current, resistance, potential differenceResistance describes how strongly the component opposes the flow of charge and is measured in ohms (Ω).
Do not confuse a quantity with its unit: current is measured in amperes (A), potential difference in volts (V), and resistance in ohms (Ω).
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