BITSAT 2016 Paper

Section: Physics

Question : 24 of 150

Marks: +1, -0

A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to X-axis while semicircular portion of radius R is lying in Y-Z plane. Magnetic field at point O is :

→
B
=−
µ0
4π
‌
I
R
(µ
⋀
i
×2
⋀
k
)
→
B
=−
µ0
4π
‌
I
R
(π
⋀
i
+2
⋀
k
)
→
B
=
µ0
4π
‌
I
R
(π
⋀
i
−2
⋀
k
)
→
B
=
µ0
4π
‌
I
R
(π
⋀
i
+2
⋀
k
)

Validate

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