1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
A short bar magnet of magnetic moment 0.4 J T$$-$$1 is placed in a uniform magnetic field of 0.16 T. The magnet is in stable equilibrium when the potential energy is
A
0.064 J
B
$$-$$ 0.064 J
C
zero
D
$$-$$ 0.082 J
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
There are four light-weight-rod samples A, B, C, D separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted
(i)  A is feebly repelled
(ii)  B is feebly attracted
(iii)  C is strongly attracted
(iv)  D remains unaffected

Which one of the following is true ?
A
B is of a paramagnetic material
B
C is of a diamagnetic material
C
D is of a ferromagnetic material
D
A is of a non-magnetic material
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The magnetic moment of a diamagnetic action is
A
much greater than one
B
1
C
between zero and one
D
equal to zero
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Two identical bar magnets are fixed with their centers at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure

AIPMT 2010 Mains Physics - Magnetism and Matter Question 22 English
The force on the charge Q is
A
zero
B
directed along OP
C
directed along PO
D
directed perpendicular to the plane of paper
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