Question

A current of 10 A is established in a long wire along the positive z-axis . Find the magnetic field $\overrightarrow{B}$ at the point (1 m,0,0).

Answer 1

Here $B=\frac{{\mu }_{0}i}{2\pi d}=\frac{2\times {10}^{-7}\times 10}{1}$

$=2\times {10}^{-6}T$

$=2\times \mu Talong+veY-axis$