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Exam-style practice

The transformer answer explanations

Review worked answers and explanations for The transformer. Aligned to Cambridge IGCSE Physics.

Answer explanations

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Paper 3 structured question: The transformer

Paper 3Theory (Core)1 marks

Description

Transformer Components

A transformer consists of two coils of wire and a core material. The primary coil is connected to an AC source, while the secondary coil delivers the output voltage. The core is made of soft iron to improve efficiency.

  1. a

    State the purpose of a transformer.

    [1]