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Cambridge IGCSE Physics practice

Paper 4 structured question: Series and parallel circuits

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Series and parallel circuits

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Paper 4Theory (Extended)2 marks

Understanding circuit behavior is crucial for analyzing electrical systems.

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Circuit Analysis

Consider a parallel circuit with three branches. The total current entering the junction is 12 A. If one branch carries 4 A and another carries 5 A, calculate the current in the third branch.

  1. a

    State the current in the third branch.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 4 structured question: Series and parallel circuits

Paper 4Theory (Extended)2 marks

Description

Series and Parallel Circuit Analysis

In a series circuit, the total potential difference is 24 V, and there are three resistors with potential differences of 8 V, 10 V, and 6 V. Verify if the total potential difference is correct.

  1. a

    State the total potential difference across the resistors.

    Aim for approximately 2 distinct marking points.

    [2]