What is the definition of the potential difference across an electrical component?
the energy transferred from electrical energy to other forms per unit charge passing through the component
the energy transferred from other forms of energy to electrical energy per unit charge by a source
the rate of flow of electrical charge through the component
the total work done by a source in moving a unit charge around a complete circuit
55 exam-style questions on CIE IGCSE Physics 4.2.3a Electromotive force. Each one has a worked solution and a mark scheme showing where the marks go.