Physics A-Level
Control of variables in a practical investigation
What Control of variables in a practical investigation means in Physics A-Level, as defined for AQA.
Definition of Control of variables in a practical investigation
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Reference: AQA
One quantity is varied at a time, keeping the wire perpendicular to the field, in the same region of field, and avoiding heating effects by limiting current.
Topics that use Control of variables in a practical investigation
- Magnetic flux density (A-level only) (AQA A-Level)
Related terms
- Definition of the tesla
- Direct proportionality and graphical analysis
- Fleming's left-hand rule
- Force on a current-carrying conductor
- Force on a current-carrying wire
- Magnetic flux and webers
- Magnetic flux density
- Measurement uncertainty and experimental design
Using Control of variables in a practical investigation in the exam
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