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A current I, flowing in a long and strai...

A current I, flowing in a long and straight wire along z-axis, is directed into two identical semicircular portions lying in y-z and x-z planes as shown in the figure. The magnetic field at the centre O is

A

zero

B

`(mu_0l)/(4pi)`

C

`(mu_0l)/(2sqrt2r)`

D

`(mu_0l)/(sqrt2r)`

Text Solution

Verified by Experts

The correct Answer is:
C
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