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Cambridge IGCSE Combined Science practice

Paper 6 structured question: Electrical quantities

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Electrical quantities

Exam-style question

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Paper 6Alternative to PracticalPractical2 marks

Analyzing results from an electric current experiment.

Results Table

Current Measurements

The table shows the current measured through different resistors.

ResistorCurrent (A)
R10.5
R21.0
R31.5
  1. a

    Explain how the current changes with different resistors.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 6 structured question: Electrical quantities

Paper 6Alternative to PracticalPractical1 marks

Method

Measuring Electric Current

In this experiment, you will measure the electric current flowing through a circuit using an ammeter.

ComponentCurrent (A)
Resistor 10.5
Resistor 21.0
Resistor 31.5
  1. a

    State the independent variable in this experiment.

    Aim for approximately 1 distinct marking point.

    [1]