Combined Science GCSE
Resistance
What Resistance means in Combined Science GCSE, as defined for AQA.
Definitions of Resistance
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Reference: AQA
Measured in ohms (Ω), it opposes the flow of electric current and is a key factor in determining the rate at which energy is transferred.
Measures how strongly a component opposes the flow of electric charge, defined by R = V ÷ I.
A quantity measured in ohms (Ω) that is multiplied by the squared current to give power.
Opposition to the flow of charge, measured in ohms (Ω).
The opposition to current, measured in ohms (Ω).
Topics that use Resistance
- Current, resistance and potential difference (AQA GCSE)
- Power (AQA GCSE)
- Series and parallel circuits (AQA GCSE)
Related terms
- Ammeter
- Potential difference
- Ampere
- Current
- Volt
- Voltmeter
- Circuit construction from diagrams
- Circuit rules
Using Resistance in the exam
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