Read the questions and select the best answer.
1.
| Assertion (A): | Copper is commonly used for making electrical wires. |
| Reason (R): | Copper is less expensive and more easily available than silver and gold. |
2.
| Assertion (A): | Materials through which electric current passes easily are known as good conductors of electricity. |
| Reason (R): | Metals such as copper and aluminium belong to this category of materials. |