The conclusive test for magnetism in a steel bar suspended horizontally at its midpoint is when the bar
A
always settles in the magnetic N-S direction.
B
is repelled by a magnet.
C
always settles in the magnetic E-W direction
D
is attracted by a magnet.
Verified Correct Answer: A.
Physical Principles & Numerical Solution
The conclusive test for magnetism in a steel bar suspended horizontally at its midpoint is when the bar always settles in the magnetic N-S (North-South) direction.
Source: Myschool Past Questions Archive (Record #69431)