Answer to Question #330147 in Electricity and Magnetism for jsjssbaj

Question

A small 10 mm diameter permanent magnet produces a field of 100 mT. The field drops away rapidly with

distance and is negligible more than 1 mm from the surface. If this magnet moves at a speed of 1 m/s through a 100-turn coil of length 1 mm and diameter just larger than the magnet, what is the EMF induced?

Answer 1

$\varepsilon=nBlv=0.01~V.$