Combined Science GCSE
variable resistor
What variable resistor means in Combined Science GCSE, as defined for AQA.
Definition of variable resistor
Check what you remember
Read the wording for your board, then hide it and explain variable resistor in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Connected in series, it can change the total resistance and therefore control the current and the potential difference across a component.
Topics that use variable resistor
- Series and parallel circuits (AQA GCSE)
Related terms
- Ammeter
- Circuit rules
- Conservation of charge
- Conservation of charge in a single loop
- Multi-step problem solving in dc circuits
- Parallel circuits
- Potential difference
- Potential difference across components and branches
Using variable resistor in the exam
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