Faraday Flashlight
Purpose
Shaking a magnet through a coil generates current that charges a capacitor and powers an LED — a hands-on demonstration of Faraday's law. Students see the complete energy conversion chain from mechanical to electrical to light, reinforcing the relationship between changing magnetic flux and induced EMF.
Figure 1:
The transparent housing allows students to observe the coil of wire and sliding magnet mechanism that generates current through electromagnetic induction when the flashlight is shaken.