Magnetic field of the straight wire

Description

The magnetic field generated by the electric current, around a straight wire, is related to the electric current and the distance “r” from the wire. (The conductor is considered infinite length, when the distance r is very small compared to its length.)

Related formulas

Variables

BMagnetic field (T)
μ0magnetic constant
πpi
IElectric current (A)
rDistance from the wire (m)