Which row correctly identifies the charge carriers responsible for conduction in a metal wire and the direction of conventional current in a circuit?
| Charge carriers in a metal wire | Direction of conventional current | |
|---|---|---|
| A | Free electrons | From the positive terminal to the negative terminal |
| B | Free electrons | From the negative terminal to the positive terminal |
| C | Positive ions | From the positive terminal to the negative terminal |
| D | Positive ions | From the negative terminal to the positive terminal |
Row A
Row B
Row C
Row D
51 exam-style questions on CIE IGCSE Physics 4.2.2a Electric current, charge and measuring current. Each one has a worked solution and a mark scheme showing where the marks go.