A transformer is being considered for a motor that drives a laboratory mixing machine. The transformer is 100% efficient.
| quantity | value |
|---|---|
| primary potential difference | 240 V |
| maximum primary current | 0.40 A |
| number of turns on the primary coil | 1200 |
| number of turns on the secondary coil | 240 |
| potential difference required by the motor | 48 V |
| power required by the motor | 120 W |
Evaluate whether the transformer can operate the motor as required. Use calculations in your answer.
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.