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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Electrical circuits

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Attempt questionElectrical circuits revisionRevise the key idea

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3

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Electrical circuits

Exam-style question

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Paper 4Theory (Extended)3 marks

A circuit diagram includes a generator and an LED connected in series with a resistor.

Diagram Description

Circuit Diagram

The diagram shows a generator connected to an LED and a resistor in series.

  1. a

    Analyse Explain how the generator, LED, and resistor work together in this circuit.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Electrical circuits

Paper 4Theory (Extended)2 marks

Description

Circuit Description

The circuit can be opened or closed using the switch, affecting the LED's operation.

  1. a

    Discuss What happens to the LED when the switch is opened and closed?

    Aim for approximately 2 distinct marking points.

    [2]