# What typical voltages are induced from a typical magnet (50-75 gauss)

by drk52
Tags: induced voltage
 P: 4,663 Let's try using Faraday's Law: $$\oint E \space d \ell = V = -N \int n \cdot \frac{dB}{dt}dA$$ N=100 turn coil A=0.0005 meters2 dB=0.0075 Tesla dt=0.1 seconds V = 100 * 0.0005 * 0.0075 /0.1 = 3.75 millivolts This is a very short pulse.