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Cambridge IGCSE Physics practice

Paper 3 structured question: The transformer

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The transformer

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Paper 3Theory (Core)1 marks

Transformers are widely used in electrical systems for voltage conversion.

Description

Transformers Overview

Transformers consist of two coils: the primary and secondary. The primary coil is connected to an AC source, while the secondary coil provides the output voltage. Depending on the turns ratio, transformers can either step up or step down voltage.

  1. a

    State the role of the primary coil in a transformer.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: The transformer

Paper 3Theory (Core)3 marks

Description

Transformer Functionality

A transformer has a primary coil with 100 turns and a secondary coil with 50 turns. It is connected to an AC voltage of 240V. Determine the output voltage of the transformer.

  1. a

    State the type of transformer described.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify the output voltage of the transformer.

    Aim for approximately 2 distinct marking points.

    [2]