Three semi - inifinte wires, each carryi...

Three semi - inifinte wires, each carrying a current of 1 A are placed on each of the coordinate axes with their ends at the origin, as shown in the figure. The magnetic induction at point `P(-2m, 0,0)` is

`(mu_(0))/(4pi)(hatj+hatk)`

`(mu_(0))/(4pi)(hatj-hatk)`

`(mu_(0))/(8pi)(-hatj+hatk)`

`(mu_(0))/(8pi)(hatj+hatk)`

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