Operating principle The electromagnet generates a magnetic field when energized and converts electrical energy into motion through magnetic forces. Base-based design A stable built-in base provides a straightforward, intuitive setup that reduces classroom preparation and makes the experiment easy for students to perform. Educational value Enhances students' practical lab skills and deepens understanding of physics by enabling hands-on exploration of magnetic effects and electric current. Key benefits - Demonstrates how electric current creates magnetism and how magnetic forces produce motion - Classroom-ready, easy to set up and use - Supports hands-on learning, inquiry, and measurement in physics topics Ideal uses and scenarios - In-class electromagnetism demonstration: connect to a power source to observe attraction/repulsion and resulting motion - Student lab exercise: vary current or voltage to study how magnetic force changes with electrical input - Teaching aid for physics lessons: illustrate magnetic effects within electrical circuits and related concepts Compatibility and performance Designed for classroom teaching and student labs, providing a reliable, visual demonstration of electromagnetic principles without complex setup.