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Users of the fantastic device are interested things:Learning about AC vs DC current and seeing a visual demonstration.They are sick of going through batteries or finding wall outlets to product electricity for their experiments.

This apparatus allows students to easily compare and contrast an AC generator and a DC generator. For demonstrating the basic structure of the AC-DC generator and working principle.

It is an excellent activity model for study of the generation of electric current. The generator produces AC/DC current simultaneously when the hand wheel is turned. The generation of the AC/DC voltage is represented by bulbs.

With AC/DC voltmeter/ammeter for easy comparison,A great DIY educational toy for kids and student to have a hands-on experience and the sense of achievement.

It's good physical teaching tools, easy to undestand and handle. Great experiment toy to help children learn the Electromagnetic Induction Principle, and cultivate kids interest in physics and science.