Which row correctly describes the particles responsible for electrical conduction in metals and in electrolytes?
| Particles moving in metals | Particles moving in electrolytes | |
|---|---|---|
| A | free electrons | mobile ions |
| B | positive ions | free electrons |
| C | free electrons | free electrons |
| D | positive ions | mobile ions |
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.