Magnetic field intensity (H) of a long conductor carrying current ‘I

1.	Magnetic field intensity (H) of a long conductor carrying current ‘I’ at a distance ‘r’ is _________
A.	\(\frac{I}{{4\pi r}}\)
B.	\(\frac{I}{{2\pi r}}\)
C.	\(\frac{I}{{4r}}\)
D.	\(\frac{I}{{2r}}\)
Answer» C. \(\frac{I}{{4r}}\)

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