MAGNETISM

a straight line wire carrying current in negative z-axis .what is unit vector in yhe direction of magnetic field at the point P(1,2,3)

3 Answers

1
Philip Calvert ·

\hat{n} = cos\theta\hat{i}-sin\theta \hat{j}

where tan θ = 2

1
matrix .............. ·

can any one explain

1
Philip Calvert ·

well use idl X r i dont think there's anything much to explain !

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