Why you need this This physics teaching aid enhances interactive learning and helps students and professionals develop a deeper understanding of electrical concepts. Who it's for Suitable for school students, physics teachers, science enthusiasts, and electricians or electronics enthusiasts seeking practical learning tools. Key feature An adjustable sliding rheostat provides precise control over electrical resistance, enabling clear observation of how current changes in circuit tests. Uses and applications Commonly used for physics laboratories, demonstrations for electrical courses, and environments for developing and testing circuit projects. Benefits Supports handson learning, bridges theory and practice, and offers a flexible tool for a range of experiments and demonstrations. Use scenarios 1) In physics laboratories to set specific resistance values for circuit experiments. 2) In classroom demonstrations to illustrate how resistance affects current and circuit behavior. 3) In development and testing of simple circuit projects by students, teachers, or hobbyists.