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ZIMSEC O-Level Physics

11.5Electricity in the home

Electricity in the home in ZIMSEC O-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic27 practice questions2 lessons

Overview

Form 4.

Learning objectives

What the syllabus expects you to be able to do.

  1. 11.5.1Describe uses of electricity in the home.
  2. 11.5.2Calculate electrical power, energy and the cost of electricity using P = VI, E = VIt and the kilowatt-hour.
  3. 11.5.3Describe electrical hazards and safety precautions.
  4. 11.5.4Describe the wiring of a three-pin plug.
  5. 11.5.5Explain the use of fuses, fuse ratings and switches in the live wire, and double insulation.

Lessons

  • Electrical power, energy and cost

    30 min

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  • Mains electricity and electrical safety

    32 min

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Sample question

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

Electricity in the home: sample question

1 mark

A 12 V car headlamp takes a current of 5.0 A. What is its power?

Answer in W.

Turn Electricity in the home into a strength.

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