Current ' ' is flowing in a conductor shaped as shown in the figure. The radius of the curved part is
and the length of straight portion is very large. The value of the magnetic field at the centre
will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
For the circular part , the angle subtended at the center is
.
Due to .
Due to is at the end of the wire; therefore at
,
.
Total induction
.
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