across versus through
What across versus through means in Physics GCSE, as defined for AQA.
Definition of across versus through
Check what you remember
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Reference: AQA
Potential difference is always across a component, while current is always through a component because it passes along the path.
Topics that use across versus through
- Current, resistance and potential difference (AQA GCSE)
Related terms
- controlling current
- current and power
- errors carried forward
- Inverse relationship
- potential difference
- Resistance
- series and parallel effects
- total resistance
Using across versus through in the exam
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