Physics Practice: Magnetism (Mock Test 4 - Expert Logic)
1. Expert Case: If a bar magnet is cut into two equal pieces along its length (parallel to its axis), the pole strength of each piece becomes ________.
2. Two magnetic field lines can never intersect because at the point of intersection, the compass needle would ________.
3. A neutral point is a point where the horizontal component of Earth's magnetic field ($B_H$) is ________ by the magnetic field of the magnet.
4. The magnetic field produced by a solenoid is very similar to the magnetic field of a ________.
5. If we increase the distance between the two poles of a magnet, the magnetic force between them ________.
6. The presence of Earth's magnetic field is evidenced by the fact that a freely suspended magnet always ________.
7. To make an electromagnet stronger, we should ________.
8. The magnetic declination varies from ________.
9. Which property of soft iron makes it unsuitable for making permanent magnets?
10. A magnetic field line is used to represent both the ________ and ________ of the magnetic field.