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4.2.3 Electromotive force and potential difference

Syllabus
0625–2026–2027
Topic
4.2.3
Level
—

4.2.3.1—Electromotive force (e.m.f.) as the

  • Define electromotive force (e.m.f.) as the electrical work done by a source in moving a unit charge around a complete circuit

4.2.3.2—E.m.f. is measured in volts (V)

  • Know: e.m.f. is measured in volts (V)

4.2.3.3—Potential difference (p.d.) as the

  • Define potential difference (p.d.) as the work done by a unit charge passing through a component

4.2.3.4—P.d. between two points is measured in

  • Know: the p.d. between two points is measured in volts (V)

4.2.3.5—Use of voltmeters (analogue and

  • Describe the use of voltmeters (analogue and digital) with different ranges

4.2.3.6—E.m.f.: E = W/Q

  • Recall/use e.m.f.: E = W/Q

4.2.3.7—P.d.: V = W/Q

  • Recall/use p.d.: V = W/Q

Objective notes

7 learning objectives
ConceptIGCSE Physics