PH-1577
Transformers
Physics · Secondary 4 · Medium · Transformers
A 240 V mains supply is used with a transformer to power a device that needs 60 V. The primary coil has 600 turns. Assuming 100% efficiency, how many turns should the secondary coil have?
- 40 turns
- 150 turns
- 300 turns
- 600 turns
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