A conductor carrying current I is of the...

A conductor carrying current I is of the type as shown in figure. Find the magnetic field induction at the common centre O of all the three arcs.

A

(a)`(5 mu i theta)/( 24 pi R ) `

B

(b)`( m_(0) itheta)/( 24 pi R ) `

C

(c)`(11 mu_(0) itheta)/( 24 piR )`

D

(d)zero

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The correct Answer is:

A

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