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A long straight wire along the Z-axis ca...

A long straight wire along the Z-axis carries a current I in the negative z-direction. The magnetic vector field B at a point having coodinates (x, y) in the z = 0 plane is

A

`(mu_(0)i(yhati-xhatj))/(2pi(x^(2)+y^(2)))`

B

`(mu_(0)i(xhati+yhatj))/(2pi(x^(2)+y^(2)))`

C

`(mu_(0)i(xhatj-yhati))/(2pi(x^(2)+y^(2)))`

D

`(mu_(0)i(xhati-yhatj))/(2pi(x^(2)+y^(2)))`

Text Solution

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The correct Answer is:
A
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