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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Electrical circuits

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3

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2

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Electrical circuits

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Paper 3Theory (Core)2 marks

Understanding series circuits is essential in electrical engineering.

Description

Series Circuit Characteristics

In a series circuit, all components are connected in a single path. The current flowing through the circuit is the same at every point, and if one component fails, the entire circuit stops functioning.

  1. a

    Explain the significance of constant current in a series circuit.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Electrical circuits

Paper 3Theory (Core)3 marks

Description

Behavior of Series Circuits

In a series circuit, the total voltage is divided among the components, but the current remains constant. If one component is removed, the circuit is broken and current stops flowing.

  1. a

    Discuss the impact of adding more components to a series circuit on the total resistance and current.

    Aim for approximately 3 distinct marking points.

    [3]