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Cambridge IGCSE Physics practice

Paper 6 structured question: Resistance

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6

Paper

2

Marks

Topic

Resistance

Exam-style question

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Paper 6Alternative to PracticalPractical2 marks

Measuring resistance in a circuit.

Results Table

Resistance Measurement Results

A table showing voltage and current readings for different resistors.

Resistor (Ω)Voltage (V)Current (A)
1050.5
20100.5
30150.5
  1. a

    Calculate the resistance of the 10Ω resistor using the data provided.

    Aim for approximately 2 distinct marking points.

    [2]

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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]