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VITEEE 2013 Solved Paper
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© examsnet.com
Question : 24
Total: 120
If a current I is flowing in a loop of radius r as shown in adjoining figure, then the magnetic field induction at the centre O will be
0
µ
0
I
θ
4
π
r
µ
0
I
s
i
n
θ
4
π
r
2
µ
0
I
s
i
n
θ
4
π
r
2
Validate
Solution:
Magnetic field B =
µ
0
4
π
2
π
I
r
Here , 2π = θ
∴ B =
µ
0
I
θ
4
π
r
© examsnet.com
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