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Question
Physics
The graph showing the variation of the magnetic field strength (B) with distance (r) from a long current carrying conductor is
Q. The graph showing the variation of the magnetic field strength
(
B
)
with distance
(
r
)
from a long current carrying conductor is
4053
227
COMEDK
COMEDK 2015
Moving Charges and Magnetism
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A
21%
B
12%
C
60%
D
7%
Solution:
The magnetic field strength
(
B
)
at the distance
(
r
)
from· a long current carrying conductor is given by
B
=
2
π
μ
0
r
I
For given current,
B
r
= constant
This represents a rectangular hyperbola