Edexcel GCSE Physics · 1PH0
Specification 13.7P · Paper 2
- Revise: Turns Ratio Equation
The ratio between the numbers of turns on two transformer coils, commonly written as .
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GCSE Physics · key term
The number of turns on the secondary coil divided by the number of turns on the primary coil.
Used by Edexcel and OCR
Specification 13.7P · Paper 2
The ratio between the numbers of turns on two transformer coils, commonly written as .
Specification P4.2h, P4.2i · Paper 1 (Foundation), Paper 3 (Higher)
The number of secondary turns divided by the number of primary turns, .
Revise: Transformer turns ratioA demonstration using 250-turn and 500-turn coils gives a voltage ratio of approximately 2:1, matching their turns ratio.
The number of turns on one transformer coil compared with the number on the other.
Paper 1, Paper 2
When explaining the relationship, state that the potential-difference ratio equals the turns ratio; do not merely say that more turns give more voltage.
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