May/June 2026 Paper 22

2026 · 40 questions · 40 parts · 40 marks

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33Transformers Power TransmissionHard1 mark
A 100% efficient transformer has 4500 turns on its primary coil and 900 turns on its secondary coil. The primary coil is supplied with a current of 1.5 A at a voltage of 240 V. What is the current in the secondary coil?