Ampère's law
$\oint \vec{B}\cdot d\vec{l} = \mu_0I_{\text{enc}}$ with symmetric loops: fields inside and outside wires, solenoids $\mu_0nI$, toroids, current sheets and coaxial cables.
About 35 minutes8 activities Paper packet
$\oint \vec{B}\cdot d\vec{l} = \mu_0I_{\text{enc}}$ with symmetric loops: fields inside and outside wires, solenoids $\mu_0nI$, toroids, current sheets and coaxial cables.
About 35 minutes8 activities Paper packet