Magnetic Field

Written by Jerry Ratzlaff on . Posted in Electromagnetism

A magnetic field exerts an invisible force that substances are sensative to magnetism.

formula

\(B =  \frac {\mu I N} {l}  \)

Where:

\(B\) = magnetic field

\(\mu\) = permeability

\(I\) = current intensity flowing in the cable

\(N\) = number of turns of the wire

\(l\) = length of the solenoid