Edexcel IGCSE Physics 6.19P Transformer turns ratio
Practise using transformer turns ratio with primary and secondary voltages, coil turns and tables to calculate unknown values with units.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- state or rearrange Np/Ns = Vp/Vs using clear primary and secondary labels
- calculate an unknown voltage or coil turns from table data using the turns ratio
- check the final transformer answer has a sensible unit
6.19P Transformer turns ratio question 1
The diagram shows a step-down transformer.
State how the primary coil of the transformer can be changed to increase the output voltage.
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