Header Banner
gadgethacks.mark.png
Gadget Hacks Shop Apple Guides Android Guides iPhone Guides Mac Guides Pixel Guides Samsung Guides Tweaks & Hacks Privacy & Security Productivity Hacks Movies & TV Smartphone Gaming Music & Audio Travel Tips Videography Tips Chat Apps

How to Build a simple carboard magnet generator

Close-up of a person holding a cardboard box with a metal pin inserted inside.

Build this ultra-simple AC electric generator from magnets, wire, and cardboard. (And a big nail!) Light a small lightbulb, or flash a red LED.

This demonstrates how generators work. Now if you want a more useful device, use a small DC motor as a generator, since it has much better magnetics design. All motors are generators. Figure out how to spin a motor's shaft, and you can make a small powerful generator. Or... figure out how to convert the cardboard generator into a motor!

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check our list of supported iPhone and iPad models, then follow our step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.

Related Articles

Comments

No Comments Exist

Be the first, drop a comment!