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CGPET 2018 Solved Paper
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© examsnet.com
Question : 7
Total: 150
The intensity of magnetic field due to current
I
in a long straight wire is proportional to
I
I
2
√
I
1
I
Validate
Solution:
The intensity of magnetic field due to current
I
in a long straight wire,
B
=
µ
0
2
π
.
I
R
or
B
∝
I
© examsnet.com
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