ZIMSEC O-Level Combined Science
7.3.5.2Electromagnetism, motors and generators
Electromagnetism, motors and generators in ZIMSEC O-Level Combined Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic58 practice questions5 lessons
Overview
Form 3.
Learning objectives
What the syllabus expects you to be able to do.
- 7.3.5.2.1Describe an experiment showing the magnetic field around a current-carrying conductor and a solenoid.
- 7.3.5.2.2Explain how movement is produced in a current-carrying wire in a magnetic field, and describe the d.c. motor and the factors that affect its rotation.
- 7.3.5.2.3Describe an experiment showing that a changing magnetic field induces an e.m.f., and state the factors that affect its size.
- 7.3.5.2.4Describe the operation of a.c. and d.c. generators.
Lessons
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Electromagnetic induction
30 min
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The a.c. generator and the d.c. generator
28 min
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The d.c. motor
25 min
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The force on a current-carrying conductor
30 min
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The magnetic effect of a current
30 min
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Sample question
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