Q.

In the current carrying conductor shown in figure, the magnetic induction at the centre O, of the semicircular part is

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a

2+1πμoi2R

b

1+2πμoi2R

c

1+1πμoi2R

d

1-1πμoi2R

answer is C.

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Detailed Solution

μoi4πR×2+μoi2R=1+1πμoi2R
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