Physics GCSE
Resistance
What Resistance means in Physics GCSE, as defined for AQA, OCR.
Definitions of Resistance
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Reference: OCR
Obtained from the potential difference across a component divided by the current through it, with the unit stated as the ohm.
The opposition to the flow of current, which cuts the current down when it is raised.
Opposes the flow of charge and is measured in ohms (Ω).
A measure of the opposition to current flow in an electrical circuit. Measured in Ohms (Ω).
Topics that use Resistance
- Current, resistance and potential difference (AQA GCSE)
- Circuit components (OCR GCSE)
- Series and parallel circuits (OCR GCSE)
- Simple circuits (OCR GCSE)
Related terms
- Current
- parallel circuit
- potential difference
- Standard circuit symbols
- across versus through
- Cell polarity conventions
- Characteristic
- constant resistance
Using Resistance in the exam
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