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Learning objective

Understand that electromotive force (e.m.f.) is quantified in volts (V).

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

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE PhysicsElectricity and magnetismCore content

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Quick explanation

Understand that electromotive force (e.m.f.) is quantified in volts (V)

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

Key concepts

KnowState

Why it matters

This objective helps connect Electromotive force and potential difference outcomes to exam-style questions, flashcards, and revision notes for Electromotive force and potential difference.

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Paper 3 structured question: Electromotive force and potential difference

Paper 3Theory (Core)1 marks

Description

Electromotive Force in Circuits

A battery provides an electromotive force (e.m.f.) of 9V. This means that for every coulomb of charge, the battery supplies 9 joules of energy.

  1. a

    State the unit of electromotive force.

    Aim for approximately 1 distinct marking point.

    [1]
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