1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A long solenoid carrying a current producess a magnetic field B along its axis. If the current is doubled and the number of turns per cm is halved, the new value of the magnetic field is
A
B/2
B
B
C
2B
D
4B
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A charged particle moves through a magnetic field in a firection perpendicular to it. Then the
A
speed of the particle remains unchanged
B
direction of the particle remains unchanged
C
acceleration remains unchanged
D
velocity remains unchanged
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A diamagnetic material in a magnetic field moves
A
from stronger to the weaker parts of the field
B
from weaker to the stronger parts of the field
C
perpendicular to the field
D
in none of the above directions
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
According to Curie's law, the magnetic susceptibility of a substance at an absolute temperature $$T$$ is proportional to
A
$$1/T$$
B
$$T$$
C
$$1/T$$2
D
$$T$$2
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