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12(a)2 marks

There are 8000 turns in the primary coil of the transformer. The primary coil is connected to a 240 V mains supply. A 6.0 V lamp connected to the secondary coil operates at full brightness.

Calculate the number of turns in the secondary coil.

0625/04/SP/23Cambridge IGCSE Physics 0625 · Specimen 2023 · Paper 4 · Question 12(a)

Fig. 12.1 — see the question text for what it shows

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Suggested time: 3 min