Hand Crank Generator educational model made of PVC for classroom demonstrations of electromagnetic generation Overview This hand crank generator is a compact teaching instrument designed to demonstrate the basic working principle of a generator: converting mechanical energy into electrical energy. Turning the hand wheel rotates an armature rotor inside a permanent magnetic field, inducing current in the armature coil that can light an LED and illustrate generation in real time. Key features and benefits Clear visualization of the principle: The complete process of turning the hand wheel, rotating the armature rotor, generating current in the coil, and lighting an LED makes the abstract concept of electromagnetic induction easy to understand. Real components and operation: Built with an armature rotor, pole shoe, permanent magnetic field, brushes, copper rings for current collection and reversing linkage, and a load plate. These visible parts help students see how a generator is constructed and how it functions. Durable PVC construction: The PVC body provides good toughness and strength for repeated classroom use and light impacts during demonstrations. Compact and ready to use: The unit has a simple, compact structure with straightforward connections so teachers and students can set up quickly and focus on the experiment rather than assembly. Direct handson learning: Handcranked operation encourages student interaction and lets learners explore how rotation speed affects output. What is included 1 x Hand Crank Generator How it works Turn the hand wheel to rotate the armature rotor inside the permanent magnetic field. The armature coil produces an alternating current, collected through two copper rings and brushes, with a reversing linkage device in place. The generated current is observable when it powers an LED, providing an immediate visual demonstration of energy conversion. Suitable applications and scenarios Physics classrooms: Demonstrate electromagnetic induction, generator construction, and the relationship between mechanical input and electrical output during lessons. STEM workshops and clubs: Provide a handson exhibit for small group experiments on rotation speed, load effects, and basic circuit response. Science fairs and demonstrations: Use the model to illustrate the principle of power generation in a clear, visible way for audiences of all ages. Technical and usage notes Material: PVC housing and structural components for durability. Construction: Armature rotor, pole shoe, permanent magnetic field, brushes, copper rings, hand wheel, and load plate as main elements. Intended use: Educational demonstration of generator principles and basic experiments with lowpower loads such as LEDs. Assembly and operation: Compact design requires minimal connection and setup. Turn the hand wheel by hand to produce observable electrical output. This hand crank generator is suitable for classroom demonstrations, handson learning activities, and basic science experiments where a clear, physical demonstration of converting mechanical energy into electrical energy is required.