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O-LevelPhysicsMagnetism5054/12 · Oct/Nov 2015 · Q371 Mark

The diagram shows an electrical device X connected between a 6 V a.c. supply and a 12 V lamp. The lamp is seen to glow with normal brightness. What is X?

Diagram for this question, from the exam paper

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Acapacitor

Bpotential divider

Crelay

Dtransformer

✓ Correct answer

D: transformer

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About this question

Topic: Magnetism, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2015 Paper 1 Variant 2, question 37.

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