current and power
What current and power means in Physics GCSE, as defined for AQA.
Definition of current and power
Check what you remember
Read the wording for your board, then hide it and explain current and power in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Since the potential difference across the battery is unchanged, a rise in current raises the power output too, because P = I V.
Topics that use current and power
- Current, resistance and potential difference (AQA GCSE)
Related terms
- across versus through
- controlling current
- errors carried forward
- Inverse relationship
- potential difference
- Resistance
- series and parallel effects
- total resistance
Using current and power in the exam
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