Read the questions and select the best answer.
1.
| Assertion (A): | Increasing the number of turns of a coil makes an electromagnet stronger. |
| Reason (R): | More turns of the coil produce a stronger magnetic field for the same electric current. |
2.
| Assertion (A): | An electromagnet retains its magnetism for a long time after the current is switched off. |
| Reason (R): | Soft iron loses its magnetism quickly when the magnetic field is removed. |