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  5. 13.2.4 The transformer power equation

13.2.4 The transformer power equation

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Revise Edexcel GCSE Physics 13.2.4 The transformer power equation with the question bank and revision guides.

Use the power equation (for transformers with 100% efficiency): potential difference across primary coil (volt, V) × current in primary coil (ampere, A) = potential difference across secondary coil (volt, V) × current in secondary coil (ampere, A); Vp × Ip = Vs × Is.

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