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Cambridge IGCSE Physics practice

What is the effect of reversing the current in a conductor within a magnetic field?

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At a glance

MCQ

Type

cambridge_mcq

Style

Topic

Force on a current-carrying conductor

Exam-style question

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What is the effect of reversing the current in a conductor within a magnetic field?.

  1. A.The force increases
  2. B.The force decreases
  3. C.The direction of the force reverses
  4. D.The force remains the same

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

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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.

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    [1]