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Cambridge IGCSE Physics practice

Paper 6 structured question: Force on a current-carrying conductor

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Force on a current-carrying conductor

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Paper 6Alternative to PracticalPractical1 marks

An experiment is conducted to observe the force on a current-carrying conductor in a magnetic field.

Method

Experiment Method

A straight wire is placed between the poles of a magnet. A current is passed through the wire, and the force is observed.

  1. a

    State the independent variable in this experiment.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 6 structured question: Force on a current-carrying conductor

Paper 6Alternative to PracticalPractical2 marks

Results Table

Results of Force Measurements

Measurements of force at different current directions and magnetic field orientations.

Current DirectionMagnetic Field DirectionForce Direction
UpNorthRight
DownNorthLeft
UpSouthLeft
DownSouthRight
  1. a

    Describe the relationship between the direction of the current and the direction of the force.

    Aim for approximately 2 distinct marking points.

    [2]