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Learning objective

Explain how to conduct an experiment to measure resistance using a voltmeter and an ammeter, including the necessary calculations.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
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  • Practise with linked questions.
Cambridge IGCSE PhysicsElectricity and magnetismCore contentPractical objective

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Quick explanation

Explain how to conduct an experiment to measure resistance using a voltmeter and an ammeter, including the necessary calculations

  • This point belongs to Resistance, especially Resistance outcomes.
  • You need to be able to explain how to conduct an experiment to measure resistance using a voltmeter and an ammeter, including the necessary calculations.
  • The key ideas to know are Describe, Determine, and Calculate.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeDetermineCalculate

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This objective helps connect Resistance outcomes to exam-style questions, flashcards, and revision notes for Resistance.

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Paper 6 structured question: Resistance

Paper 6Alternative to PracticalPractical2 marks

Method

Resistance Measurement Method

To measure the resistance of a resistor, connect an ammeter in series and a voltmeter in parallel. Record the current and voltage, then calculate resistance using R = V/I.

  1. a

    Describe the importance of controlling the temperature of the resistor during the experiment.

    Aim for approximately 2 distinct marking points.

    [2]
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