Edexcel IGCSE Physics 6.14 changing magnetic force
Practise changing magnetic force by using force-current graphs, reversed-current predictions and practical variables that increase force.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- Use force-current or force-length graphs to show proportional change and gradients.
- Predict the graph change when current direction is reversed in a wire experiment.
- Suggest stronger magnets, larger current or more coil turns to increase magnetic force.
6.14 Changing magnetic force question 1
Diagram 1 shows some apparatus used to demonstrate the magnetic force on a current-carrying wire in a magnetic field.
Diagram 1
The wire has a mass of 6.5 g .
Explain one method of increasing the magnitude of the magnetic force on the wire.
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