IGCSEScienceCambridge (CIE)Combined SciencePhysicsRevision Notes4. Electricity & MagnetismElectrical QuantitiesElectromotive force

Electromotive force (Cambridge (CIE) IGCSE Combined Science): Revision Note

Exam code: 0653

Katie M

Written by: Katie M

Reviewed by: Caroline Carroll

Updated on

Cambridge (CIE) Combined Science: PhysicsCambridge (CIE) Co-ordinated Sciences (Double Award): Physics

Electromotive force

Extended Tier Only

  • Electromotive force (e.m.f.) is the name given to the potential difference of the power source in a circuit

  • It is defined as

    The electrical work done by a source in moving a unit charge around a complete circuit

  • Electromotive force (e.m.f.) is measured in volts (V)

Electromotive force, IGCSE & GCSE Physics revision notes

The e.m.f. is the voltage supplied by a power supply: 12 V in the above case

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    Author
    Reviewer
    Katie M

    Author: Katie M

    Expertise: Physics Content Creator

    Katie has always been passionate about the sciences, and completed a degree in Astrophysics at Sheffield University. She decided that she wanted to inspire other young people, so moved to Bristol to complete a PGCE in Secondary Science. She particularly loves creating fun and absorbing materials to help students achieve their exam potential.

    Caroline Carroll

    Reviewer: Caroline Carroll

    Expertise: Physics & Chemistry Subject Lead

    Caroline graduated from the University of Nottingham with a degree in Chemistry and Molecular Physics. She spent several years working as an Industrial Chemist in the automotive industry before retraining to teach. Caroline has over 12 years of experience teaching GCSE and A-level chemistry and physics. She is passionate about creating high-quality resources to help students achieve their full potential.