# Fundamental Physics/Electromagnetism/Lenz's Law

## Lenz's Law

Lenz's law (pronounced /ˈlɛnts/), named after the physicist Emil Lenz who formulated it in 1834

The direction of current induced in a conductor by a changing magnetic field due to Faraday's law of induction will be such that it will create a magnetic field that opposes the change that produced it.


The current that profuces magnetic field is

${\displaystyle B=LI}$

The induced current will create a magnetic field that opposes the change that produced it.

${\displaystyle \phi =-NB=-NLI}$