Magnetism practice focused on magnetic force, fields due to currents, magnetic materials and instruments. Every preview below comes from NeetVellum's live original bank—not an unverified PYQ reconstruction.
magnetic force, fields due to currents, magnetic materials and instruments.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 1 · difficulty 1/5
A short bar magnet having magnetic moment 0.32 J T⁻¹ is placed in a uniform magnetic field of 0.15 T with its axis making an angle of 30° with the field. The magnitude of the torque acting on the magnet is:
A. 0.048 N m
B. 0.042 N m
C. 0.024 N m
D. 0.096 N m
Example 2 · difficulty 2/5
At a certain place on the Earth's surface, the horizontal component of the Earth's magnetic field is 0.26 G and the angle of dip is 60°. The total intensity of the Earth's magnetic field at that place is:
A. 0.52 G
B. 0.45 G
C. 0.71 G
D. 0.13 G
Example 3 · difficulty 1/5
A closed surface is drawn so as to enclose one pole of a long thin bar magnet, with the other pole lying outside it. The net magnetic flux through this closed surface is:
A. μ₀ times the pole strength enclosed, by analogy with Gauss's law of electrostatics
B. zero, because isolated magnetic poles do not exist
C. equal to the flux through any single open face of the closed surface
D. infinite, because the field lines diverge radially from the enclosed pole
The evidence-first practice loop
1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.