ampere's law long straight wire

Hukum Ampere menggambarkan hubungan antara integral medan magnetik di sepanjang lintasan tertutup Ampere dan arus listrik yang terlingkupi oleh lintasan tertutup tersebut [ 1 ].

\begin{equation}\label{egn:ampere-law} \oint \vec{B} \cdot d\vec{l} = \mu_0 I_{\rm enc} \end{equation}

\begin{equation}\label{egn:long-straight-wire-magnetic-field-assumption} \vec{B} = B \hat{\theta} \end{equation}


\begin{equation}\label{egn:path-length-element} d\vec{l} = \hat{\theta} rd\theta \end{equation}

\begin{equation}\label{egn:long-straight-wire-magnetic-field} B = \frac{\mu_0 I}{2\pi r} \end{equation}

note

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