Fundamental Physics/Electromagnetic induction

Electromagnetic induction

Faraday discovered that electric potential can be generated from magnetic field

Magnetic coil of N circular loops

For a coil of N circular loops . Magnetic field strength

$B=LI$

This magnetic field generates induced magnetic field strength

$\phi =-NB=-NLI$

Electric potential of the magnetic and induced magnetic fields above

Magnetic field potential strength

$V_{B}={\frac {dB}{dt}}=L{\frac {dI}{dt}}$

Induced magnetic field potential strength

$V_{\phi }=-{\frac {d\phi }{dt}}=-NL{\frac {dI}{dt}}$