An alternating supply of 12 V is connected to the primary coil of a transformer. The primary coil has 600 turns. In design A, the secondary coil has 300 turns; in design B, it has 150 turns. The primary supply and primary coil are unchanged.
Explain how the secondary potential difference in design B compares with that in design A.
108 exam-style questions on Edexcel GCSE Physics 13.2 Transformers and the National Grid, covering 13.2.1 Transformers and induction, 13.2.2 The transformer turns-ratio equation, 13.2.3 The National Grid, 13.2.4 The transformer power equation, and 13.2.5 Advantages of high-voltage transmission. Each one has a worked solution and a mark scheme showing where the marks go.