Simple and intuitive: designed for ease of use by students and educators during experiments with electric and electronic kits Essential teaching tool: ideal for middle school physics, electromagnetism and electrical studies Comprehensive applications: suitable for demonstrations of Faraday's law of electromagnetic induction and coil behavior Copper coil construction: includes copper primary and secondary coils for stable electromagnetic induction; starter solenoid; robust and reusable Performance and compatibility: reliable results with standard lab power supplies and measurement tools; compact, lightweight and classroom safe Practical design: enamel coated copper wires, protective bobbin and easy handling with minimal setup Use scenario 1: in the classroom, vary coil turns or magnet speed to observe induced voltage and verify Faraday's law Use scenario 2: build a small induction coil to power an LED or sensor using moving magnet or AC excitation Use scenario 3: demonstrate electromagnet strength by swapping cores or adjusting current and measure with a multimeter