Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · MagnetismPYQ · 45s
If a bar magnet is cut into two equal halves along its length: 24
TopicMagnetism
Question Typemultiple choice
DifficultyPYQ
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Pole strength is proportional to cross-sectional area; halving length does not change cross-section, so pole strength remains same but magnetic moment halves.
32
Final Answer: Option B — Pole strength is halved
28