Which row gives the unit for electric charge and the unit for potential difference?
electric charge: C\text{C}C; potential difference: V\text{V}V
electric charge: C\text{C}C; potential difference: W\text{W}W
electric charge: A\text{A}A; potential difference: V\text{V}V
electric charge: A\text{A}A; potential difference: W\text{W}W
145 exam-style questions on CIE IGCSE Physics 4.2.1a Positive and negative charge. Each one has a worked solution and a mark scheme showing where the marks go.