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JEE Main Physics Class 12 Moving Charges and Magnetism Part 2 Questions
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© examsnet.com
Question : 56
Total: 100
Two long current carrying conductors are placed parallel to each other at a distance of
8
cm
between them. The magnitude of magnetic field produced at mid-point between the two conductors due to current flowing in them is
300
µ
T
. The equal current flowing in the two conductors is:
[29-Jun-2022-Shift-2]
30
A
in the same direction.
30
A
in the opposite direction.
60
A
in the opposite direction.
300
A
in the opposite direction.
Validate
Solution:
As
B
net
≠
0
that is the wires are carrying current in opposite direction.
µ
0
I
×
2
2
π
(
4
×
10
−
2
)
=
30
×
10
−
6
T
⇒
I
=
30
×
10
−
6
10
−
6
A
=
30
A
in opposite direction.
© examsnet.com
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