1.
A freely suspended magnetic needle comes to rest because
2.
The horizontal component of Earth's magnetic field is maximum at
3.
At the magnetic poles of Earth, the angle of dip is
4.
At the magnetic equator, the angle of dip is
5.
A bar magnet is placed in a uniform magnetic field. If its magnetic moment is perpendicular to the magnetic field, the torque acting on it is
6.
The magnetic field at a large distance from a bar magnet is similar to that due to
7.
Which one of the following substances is paramagnetic?
8.
The relative permeability of a diamagnetic material is
9.
The magnetic susceptibility of a paramagnetic substance is
10.
Soft iron is used in transformer cores because it has
11.
Assertion (A): Ferromagnetic substances retain magnetism even after removing the external magnetic field. Reason (R): They possess magnetic domains that remain aligned.
12.
Assertion (A): Diamagnetic substances are repelled by a magnetic field. Reason (R): Their magnetic susceptibility is positive.
13.
The area enclosed by the hysteresis loop represents
14.
In the hysteresis loop, the point where magnetization becomes zero after reversing the magnetic field represents
15.
The magnetic field lines inside a permanent magnet are
16.
Match the Columns: Column–I P. Angle of Dip Q. Magnetic Declination R. Magnetic Equator S. Geographic Pole Column–II 1. Angle between magnetic and geographic meridian 2. Dip = 0° 3. Dip = 90° 4. Angle made by Earth's magnetic field with horizontal Choose the correct matching.
17.
Which magnetic material is most suitable for making a permanent magnet?
18.
The magnetic moment of a current-carrying circular loop increases when
19.
The magnetic axis and the geographic axis of Earth
20.
Which statement is correct regarding magnetic field lines?
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