Magnetic Field

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

Magnetic Field formula

\(\large{ B =  \frac {\mu \; I \; N} {l}  }\)

Where:

\(\large{ B }\) = magnetic field

\(\large{ \mu }\)  (Greek symbol mu) = permeability

\(\large{ I }\) = current intensity flowing in the cable

\(\large{ N }\) = number of turns of the wire

\(\large{ l }\) = length of the solenoid