Read the assertion and reason statements to give the correct answer.
1.
| Assertion (A): | Increasing the number of turns in a coil strengthens an electromagnet. |
| Reason (R): | More turns produce a stronger magnetic field around the coil. |
2.
| Assertion (A): | Earth behaves like a giant magnet. |
| Reason (R): | Earth’s magnetic field is produced due to electric currents inside its molten core. |