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ZIMSEC O-Level Physics

13.1Magnetic effect of an electric current

Magnetic effect of an electric current in ZIMSEC O-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Overview

Form 4.

Learning objectives

What the syllabus expects you to be able to do.

  1. 13.1.1Describe an experiment to show that a current-carrying conductor has a magnetic field around it.
  2. 13.1.2Describe an experiment to plot the field pattern of a current-carrying solenoid.
  3. 13.1.3Predict the direction of the field around a straight conductor and a solenoid (right-hand grip rule).

Lessons

  • The magnetic effect of a current

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Magnetic effect of an electric current: sample question

1 mark

A vertical wire carries a current downwards. Looking down on it from above (so the current flows away from you), which way do the field lines go round the wire?

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