Question

Ampere's Circuital Law —

Answer 1

Ampere's Circuital Law —

According to Ampere's circuital law, the line integral of magnetic field over a closed loop is $\mu_0$ times the current threading through the closed loop.

Mathematically, Ampere's law is

$\oint \vec{B} \cdot d \vec{l}=\mu_0 I_{\mathrm{enc}}$

where $I_{\text {enc }}$ is the net current encircled by that closed loop.