A law describing the magnetic field generated by a constant electric current. It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current.

$\mu_0$ is the permeability of free space, a constant that indicates how well magnetic fields propagate through a vacuum.

An infinitesimally small vector element of the current-carrying wire, with its direction being the direction of the current.

$\hat{r}$ is the unit vector pointing from the current element ($Id\vec{l}$) to the point where the magnetic field is being calculated.

$d\vec{B}$ represents the infinitesimal magnetic field contribution from a small segment of current-carrying wire.

A law describing the magnetic field generated by a constant electric current. It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current.

$\mu_0$ is the permeability of free space, a constant that indicates how well magnetic fields propagate through a vacuum.

$d\vec{l}$ represents a small segment of the current-carrying wire, with its direction being the direction of the current.

$\hat{r}$ is the unit vector pointing from the current element ($Id\vec{l}$) to the point where the magnetic field is being calculated.

'I' represents the current flowing through the wire.

1: Divide the current-carrying wire into small segments $dl$. 2: Calculate the magnetic field $dB$ produced by each segment using the Biot-Savart Law equation. 3: Determine the direction of $dB$ using the right-hand rule. 4: Integrate (sum) all the $dB$ contributions to find the total magnetic field $B$.