Answer to Question #185583 in Electricity and Magnetism for Viccy

Question

Magnetic field due to solenoid

Answer 1

The homogeneous magnetic field inside the solenoid is

$B = \mu_0 nI$

where

$\mu_0$ - vacuum permeability

$n$ - the number of turns per unit length, $n = N/L$

$I$ - current.