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O-LevelPhysicsMagnetism5054/11 · May/June 2024 · Q361 Mark

A step-down transformer changes 240 V a.c. to 12 V a.c. There are 600 turns on the primary coil. How many turns are on the secondary coil?

A20
B30
C600
D12000

✓ Correct answer

B: 30

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About this question

Topic
Magnetism, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2024 Paper 1 Variant 1, question 36.

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