Four wires are made from the same metal alloy. Which wire has the greatest electrical resistance?
| Wire | Diameter of wire / mm\text{mm}mm | Length of wire / m\text{m}m |
|---|---|---|
| A | 0.3 | 0.5 |
| B | 0.3 | 1.5 |
| C | 0.6 | 0.5 |
| D | 0.6 | 1.5 |
Wire A
Wire B
Wire C
Wire D
132 exam-style questions on CIE IGCSE Physics 4.2.4a Resistance. Each one has a worked solution and a mark scheme showing where the marks go.