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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Electrical circuits

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Electrical circuits

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Paper 3Theory (Core)3 marks

Understanding the differences between series and parallel circuits is essential in electronics.

Description

Characteristics of Circuits

In a series circuit, all components are connected in a single path. In a parallel circuit, components are connected across the same voltage source, allowing multiple paths for current.

  1. a

    Compare the characteristics of series and parallel circuits.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Electrical circuits

Paper 3Theory (Core)3 marks

Description

Circuit Configuration

The series resistors have values of 4Ω, 6Ω, and 10Ω. The parallel resistor has a value of 5Ω.

  1. a

    Calculate the total resistance of the circuit.

    Aim for approximately 3 distinct marking points.

    [3]