Description: 【Educational Tool】: The Sliding Rheostat is an essential learning tool for physics education, providing a hands-experience to students for understanding the principles of electrical. It is ideal for classroom demonstrations, lab experiments, and scientific projects. 【Quality Material】: Made from premium quality materials, this Sliding Rheostat 2A20Ω is designed to withstand repeated use in a classroom setting. Its construction ensures longevity and reliability, making it a worthwhile investment for schools and educational institutions. 【Easy to Use】: The Electrical Slide Rheostat can be used as a current and voltages regulator for research and demonstration in the , as well as for excitation and speeds control of power generation equipment and DC motors. 【Safe Design】: Safe is paramount in a learning environment, and this Physical Electrical Equipmentis designed with that in mind It features a safe, low-voltages design to ensure the safe of users during experiments and demonstrations. 【Enhances Learning Experience】: The Physics Electrical Slide Rheostat not only teaches the principles of physics but also stimulates curiosity and interest in scientific exploration. It helps students visualize complex physics concepts, making learning interactive and engaging. Specification: 12.5x3.5x5.5cm/4.92x1.38x2.17inch Package Includes: 1pcs Teaching instrument Note: Please allow slightly errors due to manual measurement and different monitors.