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Learning objective

Know that electromotive force (e.m.f.) is measured in volts (V).

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceElectricitySupplement content

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Quick explanation

Know that electromotive force (e.m.f.) is measured in volts (V)

  • This point belongs to Electrical quantities, especially Electrical quantities outcomes.
  • You need to be able to know that electromotive force (e.m.f.) is measured in volts (V).
  • The key ideas to know are State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

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This objective helps connect Electrical quantities outcomes to exam-style questions, flashcards, and revision notes for Electrical quantities.

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Paper 4 structured question: Electrical quantities

Paper 4Theory (Extended)2 marks

Description

Electromotive Force

Electromotive force (e.m.f.) is the energy provided by a source per unit charge, measured in volts (V).

  1. a

    Define electromotive force (e.m.f.) and state its unit of measurement.

    Aim for approximately 2 distinct marking points.

    [2]
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