[NOTES/EM-07011]-Direction convention for Ampere’s Law

The circulation of magnetic field around a loop \(\gamma\) equals \(\mu_0\) times the current enclosed. \begin{equation}\label{EQ01} \oint_\gamma\vec{B}\cdot\overrightarrow{dl}=\mu_0I \end{equation} If the current is out of the paper, the loop for the circulation of magnetic field should be anti clock wise, if not a minus sign will appear in the above equation.